BMW K bikes (Bricks)

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1Back to top Go down   Battery replacement  Empty Battery replacement on Wed Nov 09, 2011 8:18 am

Cris_A

Cris_A
active member
active member
Hello everyone Im looking to replace the battery on my 87' K100rs , it seems that as soon as I enter the word BMW when searching the price doubles , I know is nothing magical about our batteries , so what can I use for under U$100 ?? looking for something decent but dont need to have the latest battery on the market , also it has to be something that I can get in the US. Thanks
PS: Mine says 30AH , does it has to be a 30amp battery? not sure if the PO just install what ever he found.


__________________________________________________
[b]Cris cheers

87' K100rs 0043923
    

2Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Nov 09, 2011 8:32 am

RicK G

RicK G
VIP
VIP
That is the standard size Chris. Many sizes fit and the thing to make sure of is that the height is correct because the long screws dont have any extra to play with.
I use a gel battery in all my Ks they are maintenence free and supply a good wack of current when you hit the button. I have no personal experience with the length of service as all mine are under 3 years old but I know of several people who have got 5 or more years out of one. They are a bit more expensive but do last so the cost is really good if you take it like that.
Check this one out http://www.ebay.com/itm/UIX30L-YIX30L-BS-BMW-K100S-K100RT-1000-R-R100CS-Battery-/130511178937?pt=Automotive_Services&vxp=mtr&hash=item1e63128cb9


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

3Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Nov 09, 2011 12:07 pm

Crazy Frog

Crazy Frog
admin
admin
Check Deka (East Penn Manufacturing Oc )

This is what I use for the last 5 years.

CF


__________________________________________________
Battery replacement  Frog15Battery replacement  Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

4Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Nov 09, 2011 4:17 pm

Stan

Stan
Life time member
Life time member
After replacing many batteries over the years and , like you, mentioning BMW I came up with a cheaper solution. Take your battery out and take it to a trustworthy battery place. Place battery on counter and explain that the battery is stuffed and you need a replacement. The blokes here measured the battery, checked the specifications and produced a battery from out the back of the store.

Apparently the cross reference charts do not always line up amongst the manufacturers and the BMW name suggests wealth, therefore price hike.

So work from the battery, rather than the bike.


__________________________________________________
1983 K100 basic vin 0003960 colour red  GONE
1987 K100RT vin 0094685 colour, orange peel, sorry, pearl..GONE
F800R black
    

5Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Nov 09, 2011 4:19 pm

charlie99

charlie99
VIP
VIP
true that ainsjac ...i got mine for $85...


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OBattery replacement  Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

6Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Nov 09, 2011 5:59 pm

Brickee

Brickee
Silver member
Silver member
ainsjac, I just ordered a battery from here http://www.batterystuff.com/powersports-batteries/sYIX30L.html Ordered it on Monday and it arrived today, no tax and free shipping. Hope that helps.

    

7Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Nov 09, 2011 6:04 pm

Brickee

Brickee
Silver member
Silver member
Sorry, that was supposed to addressed to Cris_A


__________________________________________________
86 K100RT VIN 0053533

The good news is, I no longer have senior moments. The bad news is, now it's a constant state of mind.
    

8Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Nov 09, 2011 7:08 pm

CaperKen

CaperKen
Silver member
Silver member
Bert ... did you get that Deka battery in Halifax or did you import it? Which model #? Ken

    

9Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Nov 09, 2011 8:51 pm

Crazy Frog

Crazy Frog
admin
admin
@CaperKen wrote:Bert ... did you get that Deka battery in Halifax or did you import it? Which model #? Ken
I got the ETX16L from East Penn on Ackerley Blvd in Burnside.
Here are the specs and price
It is a bit physically smaller, but they provide a spacer and the battery fits perfectly.

CF


__________________________________________________
Battery replacement  Frog15Battery replacement  Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

10Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Nov 09, 2011 9:03 pm

CaperKen

CaperKen
Silver member
Silver member
Thanks, Bert. I'll need a new one in the spring. Ken

    

11Back to top Go down   Battery replacement  Empty Re: Battery replacement on Thu Nov 10, 2011 1:28 am

Cris_A

Cris_A
active member
active member
Thanks to everyone the Deka is looking good , but as long as the battery is 30amp and it can fit I can just get anything , guess the key part is the 30amp


__________________________________________________
[b]Cris cheers

87' K100rs 0043923
    

12Back to top Go down   Battery replacement  Empty Re: Battery replacement on Tue Feb 02, 2016 5:02 pm

martyman

martyman
Silver member
Silver member
No one answered if it needed to be a 30amp battery...

    

13Back to top Go down   Battery replacement  Empty Re: Battery replacement on Tue Feb 02, 2016 5:12 pm

Crazy Frog

Crazy Frog
admin
admin
@martyman wrote:No one answered if it needed to be a 30amp battery...

Yes it has to be 30A.


__________________________________________________
Battery replacement  Frog15Battery replacement  Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

14Back to top Go down   Battery replacement  Empty Re: Battery replacement on Tue Feb 02, 2016 5:26 pm

92KK 84WW Olaf

92KK 84WW Olaf
Life time member
Life time member
My K100LT battery died on a Friday up in the west of Ireland. Not in a million years could you get a battery there...or so I thought.

On the back of my son's bike, battery in hand, we headed tot he nearest Halfords at the next big town about half an hour away, only to discover this branch did not sell motorcycle batteries. 'Try up the road, there is a place sells ride on lawnmowers, he might help'.

So off we went. I duly placed the battery on the counter and sheepishly asked 'you wouldn't happen to have one of these?' Without moving he lifted a box out from under the counter and said 'like this?' Exact match size, not being in a position to refuse I took the 20mp battery for the princely sum of €50. Fitted in the LT it ran perfectly for3 years and more.

All I wanted was one to get me home but it did the job again and again. Seems the RT only calls up 20 Amp......so the difference must be to cater for the accessories. Engine, starter, lights etc are all identical.

However, in times of trouble that extra 30 Amp over 20 Amp is worth having.


__________________________________________________
1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 102,50 miles
1983 K100RS 0011171 Fricka 606 29,495 miles Damn K Pox Its a Bat outta Hell No 34,600 miles
    

15Back to top Go down   Battery replacement  Empty Re: Battery replacement on Tue Feb 02, 2016 6:58 pm

martyman

martyman
Silver member
Silver member
My yuasa 53030 will still start my bike up but will not fully charge...would like to find a replacement that is not a pain in the butt to take in and out...that is why I was curious if I could use a slightly smaller width battery with less Amps...thank you.

    

16Back to top Go down   Battery replacement  Empty Re: Battery replacement on Tue Feb 02, 2016 7:20 pm

Crazy Frog

Crazy Frog
admin
admin
@martyman wrote:My yuasa 53030 will still start my bike up but will not fully charge...would like to find a replacement that is not a pain in the butt to take in and out...that is why I was curious if I could use a slightly smaller width battery with less Amps...thank you.
As I said earlier in this thread, the ETX16L is a bit physically smaller, but they provide a spacer and the battery fits perfectly.
It's very easy to pull this battery out.


__________________________________________________
Battery replacement  Frog15Battery replacement  Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

17Back to top Go down   Battery replacement  Empty Re: Battery replacement on Tue Feb 02, 2016 7:53 pm

martyman

martyman
Silver member
Silver member
Thank you I will try to find one of those...


DEKA is 19A

    

18Back to top Go down   Battery replacement  Empty Re: Battery replacement on Tue Feb 02, 2016 10:56 pm

duck

duck
Life time member
Life time member
My K100 has an EXT15L. It saves pounds of weight and $$$.

I would only recommend it though if you plan to keep the bike on a tender or plan to ride it at least once a week or so. If kept fully charged, it starts the bike just fine.

http://www.kbikeparts.com/classickbikes.com/ckb.tech/0.ckb.tech.files/batts/batteries.htm


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

19Back to top Go down   Battery replacement  Empty Re: Battery replacement on Tue Feb 02, 2016 11:16 pm

indian036

indian036
Life time member
Life time member
Just clarifying, 30AH (not 30A) means it will deliver 30 amps for 1 hour before it's flat, or 1 amp for 30 hours or any other combination of amps and hours that multiplies to make 30. 
It's a measure of the amount of electrical energy stored in the battery. 

The other important measure for a battery is CCA or cold cranking amps - the maximum current that can be delivered for starting the engine. Engines vary in how much much they require, but my Haynes manual doesn't have the figure for the Ks. Batteries vary in how much CCA they can deliver, too. Not always related to AH or size.

Normally, you only use a fraction of the energy in the battery to start the engine, then the alternator takes over the job of supplying all the electricity for running the engine and all accessories, as well as recharging the battery.

The extra battery capacity is to allow for multiple starting attempts if necessary and running accessories (lights, phone chargers etc) while the engine is not running. It also runs the engine etc for a time if the alternator fails while riding. It will also take up the slack to a degree if you have something temporarily attached which lifts demand over the alternator's delivery capacity. If you do that a lot, you need a bigger alternator. e.g. driving lights

In most cases, a much smaller battery is all that is needed, but a larger capacity battery gives the extra insurance for those multiple starting attempts or running accessories while stopped. A smaller battery may also not deliver enough CCA for the engine.
If you go for a smaller battery for weight, availability or space reasons, it will be OK if it delivers enough CCA, but you take the risk for multiple start attempts, etc.

Bill

PS following Duck's contribution.
A larger battery will also likely still have enough charge to start an engine if it goes down a bit by non use or non charging over time. Another insurance factor of the larger battery, but keeping it on a maintenance charger or using more frequently will limit the risk, as Duck says.



Last edited by indian036 on Tue Feb 02, 2016 11:20 pm; edited 1 time in total (Reason for editing : PS)


__________________________________________________
1985 K100RT  VIN 0028991  My original Very Happy   (Historic rego)
1985 K100RT  VIN 0029036  BOB the Blue Old Bike  (Historic rego)
1990 K100LT  VIN 0190452  Work in progress
1984 K100RT  VIN 0023022  Work needing lots of progress

1986 K100RT  VIN 0090542  Work needing lots and lots of progress
1993 K1100LT  VIN 0183046  Work in progress
1993 K75S  VIN 0213045  Newest toy, slightly non-original
    

20Back to top Go down   Battery replacement  Empty Re: Battery replacement on Tue Feb 02, 2016 11:30 pm

Two Wheels Better

Two Wheels Better
Moderator
Moderator
I'm on my third Motobatt MB51814 (in various Beemers) now. It's an AGM rated at 260 CCA and is a 22Ah. It's the slimmer version of the two that fit K75/100/1100 & Brick 1200, and has both positive and negative terminals at each corner for multiple applications, though it's intended for and fits BMW K and Oilheads as an OEM does.

Here are the specs:

MotoBatt MB51814 Sealed AGM Battery Specifications
ModelAhCCAL x W x H (inches)L x W x H (mm)Spacer HeightTotal HeghtTotal Terminals
MB51814222607.203.156.6918380170nana170 mm6.73"4 QuadFlex


__________________________________________________

1977 R75/7-R100 grey, '87 K100RS red, '93 K11-K12 aka 'Big Block' black, '96 K1100RS black, '98 K1200RS red, '09 K1300GT red, & 2013 R1200RT-Polizia black & white.

    

21Back to top Go down   Battery replacement  Empty Re: Battery replacement on Tue Feb 02, 2016 11:32 pm

RicK G

RicK G
VIP
VIP
The Ks don't need a big battery for starting and many of the K75 and K100RS had 18AH as standard. Most of the RT/LT had the 30AH because they were the authorities bikes and needed the bigger battery for the flashing lights and high power radios.AFAIK the LT in Oz had the 30AH as standard but the retail version of the RT was optional.
I have a large battery because I need to run a CPAP machine when camping and some extra lights.
The battery cradle has provisions for both sizes. Actually the large battery that was used was a 24AH not 30AH but with the AGM batteries now a 30AH can fit.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

22Back to top Go down   Battery replacement  Empty Re: Battery replacement on Tue Feb 02, 2016 11:58 pm

duck

duck
Life time member
Life time member
If I could only have one battery it would be the Odyssey PC680. They LAST and in my experience are extremely reliable.

My experiment with the EXT15L was just to see how small of a battery I could "get away with."

Westco's weigh a little more than the PC680 but are also a "tank" of a reliable battery with a well-deserved excellent reputation. If I were to do a RTW or similar I would probably start with a fresh Westco.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

23Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Feb 03, 2016 3:24 am

Chocolate

Chocolate
Life time member
Life time member
Hello!

18 Amp is enough for the K.
I take the Kung long build for the solar industry or alarm systems.
Last the last 4 years and starts perfect, even with ABS, witch is quit sensitive for low power.
I prefer a stronger Alternator 50amp

The best price on the market.

Kung-Long-WP18-12-12V-18Ah-UPS
Or
Kung-Long-WP22-12-12V-18Ah-UPS

http://www.ebay.com.au/itm/Kung-Long-WP18-12-12V-18Ah-UPS-Battery-/281342287045?hash=item41814e9cc5:g:jGsAAOSw-jhULdM5

Battery replacement  <a href=Battery replacement  Image37" />

Cheers


__________________________________________________
Only a few activities make me experience my senses in a way motorcycle riding does, it is like swimming in the nude in a river.
K75 BA/1992 ABS, K75 BA/1991 noABS, Ducati, Mobylette M1/1973
    

24Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Feb 03, 2016 6:11 am

robmack

robmack
Life time member
Life time member
I'll concur with the opinion that 18AH is sufficient. My K75 came with a Yuasa YTX20HL-BS 18AH battery when I bought it used from a guy who didn't ride any more. So, he had that battery in the bike, stored in the garage, for a year or two prior to selling.  I've used the same battery reliably for three years ever since.  It has 310 CCA which is enough to get the K75 engine turning over briskly.


__________________________________________________
Robert
1987 K75 @k75retro.blogspot.ca
http://k75retro.blogspot.ca/
    

25Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Feb 03, 2016 9:12 am

brickrider2

brickrider2
Life time member
Life time member
Battery threads can sometimes seem a bit like oil threads in that riders can have varying experiences with the same battery.  Case in point: I have an Odyssey PC680 in a non-BMW bike that is about 10 years old.  It must be one of the best batteries I've even had. That battery has an extremely slow self-discharge rate.  I subsequently bought others (PC680) and both failed within 2 or 3 years.  My experience with these batteries suggests that quality control is inconsistent.  
My K100RS now has a Deka full-sized battery I bought from EME.  It's only one year old but seems to be a solid item, with a self-discharge rate I can live with.  
I parted ways with flooded cell batteries years ago.  Topping up those cells and the invariable acid etching of the bike are things I no longer worry about.

    

26Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Feb 03, 2016 9:25 am

duck

duck
Life time member
Life time member
If you let a K bike sit, the clock will discharge the battery quicker than "self-discharge." It's a very small current but over several months it can drain the battery.

If you know the bike is going to sit for a while then it's a good idea to disconnect the battery ground.

I let my K11LT sit for a year in storage (Panasonic large 20A battery.)  Hooked the ground back up and it started right up.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

27Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Feb 03, 2016 9:40 am

Chocolate

Chocolate
Life time member
Life time member
Maintenance is mandatory for any batterie!
I don't want any acid batterie, destroys my frame and needs water.

Avery first of the month I charge my batteries, winter and summer.
Prevents from discharging.

To disconnect the batterie I use this for 3€
It is connected to the ground cable to the gearbox
It also prevents/helps in case the starter is sticking.
The ground/batterie connection is interrupted.

Battery replacement  <a href=Battery replacement  Image12" />

Battery replacement  <a href=Battery replacement  Image38" />

Cheers


__________________________________________________
Only a few activities make me experience my senses in a way motorcycle riding does, it is like swimming in the nude in a river.
K75 BA/1992 ABS, K75 BA/1991 noABS, Ducati, Mobylette M1/1973
    

28Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Feb 03, 2016 9:51 am

duck

duck
Life time member
Life time member
Although I usually disconnect the battery ground if I know a bike is going to sit, upon further reflection, a simpler approach might just be to remove the unswitched Fuse #3 which powers the clock.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

29Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Feb 03, 2016 10:00 am

duck

duck
Life time member
Life time member
@Chocolate wrote:Maintenance is mandatory for any batterie!
I don't want any acid batterie, destroys my frame and needs water.

Avery first of the month I charge my batteries, winter and summer.
Prevents from discharging.

To disconnect the batterie I use this for 3€
It is connected to the ground cable to the gearbox
It also prevents/helps in case the starter is sticking.
The ground/batterie connection is interrupted.

Battery replacement  <a href=Battery replacement  Image12" />

Battery replacement  <a href=Battery replacement  Image38" />

Cheers
SLA (sealed lead acid) batteries do not leak acid, even if installed upside down, and require no maintenance.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

30Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Feb 03, 2016 10:19 am

RicK G

RicK G
VIP
VIP
I installed anderson plugs on my K1100 and my wifes K75. It makes it easy to unplug if I am working on the fuel system or if the starter relay did it's trick.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

31Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Feb 03, 2016 12:12 pm

martyman

martyman
Silver member
Silver member
Excellent info, have a line on a Deka thank you...


Found one from this place that is very close to where I live...good price also

http://www.motorcycleinnovations.ca/ETX16L_p/etx16l.htm

    

32Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Feb 03, 2016 2:17 pm

brickrider2

brickrider2
Life time member
Life time member
An anderson plug is what?  Question

    

33Back to top Go down   Battery replacement  Empty Re: Battery replacement on Wed Feb 03, 2016 6:15 pm

blaKey

avatar
Life time member
Life time member
This

I've got them fitted on my earth cable.

"It makes it easy to unplug if I am working on the fuel system or if the starter relay did it's trick." Exactly.

Oh...and for what it's worth, my 18Ah golf buggy battery is on its 4th year of service.



Last edited by blaKey on Wed Feb 03, 2016 6:18 pm; edited 1 time in total (Reason for editing : added the battery info.)


__________________________________________________
Neil
K100RS 1986 RED!

Dress for the ride and the potential slide.
    

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