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roywilson

Joined:

May 09

Posts: 8

roywilson says:

BMW R1200RT Battery

My bike is a 2005 BMW R1200RT with 8000 miles clocked up.

Bike wouldn’t start, the battery was flat last week end after been left for 2 weeks in the garage. Is it telling me the original BMW battery is on its last legs. Now charged up it starts fine but lost faith in the battery.

The local BMW dealer only recommends using a BMW battery. Well they would. But am i correct in that Lucas supply these to BMW with a BMW label, so should be exactly the same thing.

My questions are:

Would you recommend replacing it with a Lucas gel type without a BMW label and have no concerns?

Also would you recommend using an Optimate trickle/conditioning charger on the new battery?

Many thanks, Roy

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  • Posted 3 years ago (26 October 2011 20:34)

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jaffa90

Joined:

Mar 09

Posts: 8592

jaffa90 says:

battery

It sounds like its not holding charge for long and on its way out after 6 years,if you have a multimeter you could check the bikes charging system.If your sure it`s the battery and not being drained when switched off then a battery is a battery:blink: 

http://www.mdsbattery.co.uk/shop/productprofile.asp?productgroupid=2777&model=r1200rt&brand=bmw&departmentname=motorcycle+batteries&departmentid=155

Also if using the bike every two weeks or less you don`t need a charger with a good battery. 

http://www.yuasabatteries.co.uk/51913-yuasa-12v-19ah-bmw-180-p.asp

[This Reply has been modified by the Author]

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triumphrider600

Joined:

Feb 09

Posts: 550

BMW

recommend their battery for a reason. The flat twin takes some turning over. I tried a cheaper battery once on my 1150 lasted 5 weeks and was F:mad:cked.
Bought a battery from this lot http://www.motorworks.co.uk/vlive/Home/index.php
who are a good source of spares for the BM amyway. I also fitted their upgraded starting kit, which made a huge diff. Will do the same to my 1200 when the battery needs changing.
One other thing, my 2009 R1200RT has a canbus electrical system, so it is also 'recommended' to use the BMW charger that plugs into the touring electrical sockets fitted to the bike. It talks to the ecu stopping it from shutting them down. Other forums state that an optimate, that I have on my other bikes, will damage the canbus/ecu???

Tom

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def1938

Joined:

Aug 11

Posts: 11

def1938 says:

battery

I would not replace with BMW brand. The BMW batteries are just not that good and they are $$s. I replaced my OE BMW battery on my R1150GS years ago with a AGM from Odyssey. I have had no battery issues since. As for a charger, get any name brand automatic charger, I use Black and Decker 2-4-6 units for all my batteries. They are about $40.00.

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eatcs01

Joined:

Aug 02

Posts: 3222

eatcs01 says:

BMW

You CAN use an optimate to keep your battery charged. However, you must connect it directly to your battery. This WILL NOT upset the canbus electrics.

Personally, I wouldn't buy a BMW branded battery unless it's cheaper than any others that you can find. I fitted a VARTA or BOSCH to my BMW R1200GS as it was the cheapest decent battery I could find.

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roywilson

Joined:

May 09

Posts: 8

roywilson says:

BMW

Thanks for all the information chaps.

What is an upgraded starting kit from motorworks? 

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