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Battery Issues Anyone?

bluemooner

New Member
Well I've only had my bike less than 2 weeks and it appears to struggle to start, with a noticeable split second groan before it fires up. I know that its a fairly big lump to start up anyway, but it never did this when I went to see it at the dealers.

Anyway I have bought an Optimate4 charger and stuck it on last night, and there is a flashing red fault light after charging process is completed, which according the instruction book means that the battery has gone below its recommended level for too long and can now longer holds it charge correctly and maybe a cell has suffered irreparable damage :eek:

question is has anyone else suffered any battery issues? and how have you overcome them? Apparently the OEM battery is fairly rubbish anyway, so has anyone replaced their battery with an after market one?
 

Schtum

Club Bard
A) Let's move this to the Technical Q & A Forum.

B) I take it you have the original Bosch AGM battery - how old is it?

For a while the hot tip for battery replacement was the Hawker Odyssey. Of late, some people, including some friends of mine having been buying the Motobatt instead.
 

eyore

New Member
I'd second the Motobatt option also as they have a beter cranking capacity for their physical size, and as you say its a big old lump to crank over.
 

eyore

New Member
Just a question following on from this thread, what is so special about the Optimate 4 charger, just wondering if its something to do with the Canbus or can an ordinary charger be used on the GS?
 

Schtum

Club Bard
Just a question following on from this thread, what is so special about the Optimate 4 charger, just wondering if its something to do with the Canbus or can an ordinary charger be used on the GS?
The Optimate 4 and the current model BMW charger both communicate with the CANBus and allow you to charge the battery by plugging into the bike's accessory socket. Otherwise, you can just charge the battery by connecting the charger directly to it but beware - not all chargers are suitable for AGM batteries.
 

bluemooner

New Member
Just a question following on from this thread, what is so special about the Optimate 4 charger, just wondering if its something to do with the Canbus or can an ordinary charger be used on the GS?
Hi Kim

The Optimate 4 like Schtum says is ideal for our bikes with the Canbus system as its a simple case of plugging it into the existing accessory socket.

Please be aware though that it is of no use at all if the battery has desulphated in the past, as it will not recover it for you.
 

eyore

New Member
Thanks Andy, I wasn't sure if it was safe to use my original charger, but as its so simple to lift off the seat I will just do that ,and use the crocodile clips directly to the terminals rather than buy an Optimate 4, and use the aux socket. The issue only arose yesterday when the bike refused to start, I guess the cold weather has put paid to the original battery which is nearly 6 years old, so a new Motobatt is due to arrive tomorrow.
 

eyore

New Member
Ended upwith the wrong batery ,my fault having found an online Motobatt catalogue which appears to be wrong. Ordered a MBTX14 instead of a 12.
Anyway amazingly it fits in on its side perfectly so I now have more capacity. Funny how in hindsight some things become obvious but the alarm stopped working last week due to the weak battery.
 

bluemooner

New Member
Ended upwith the wrong batery ,my fault having found an online Motobatt catalogue which appears to be wrong. Ordered a MBTX14 instead of a 12.
Anyway amazingly it fits in on its side perfectly so I now have more capacity. Funny how in hindsight some things become obvious but the alarm stopped working last week due to the weak battery.
I've gone down the Oddyssey battery route Kim, it is being delivered on Wednesday. Not sure how easy the Mottobad battery was to fit but the Oddyssey does require a little bit of work, as ts slightly taller than the OEM unit. Also I have to remove the auxillary socket cable and resite the fitting with a cable tie, but at the end of the day a more powerful battery is worth the little bit of grief in the short term.

ps. Is that the sun I see peeking around the clouds? Looks like exactly the excuse I have been looking for, to get out on my bike yee hah! :D
 

bluemooner

New Member
Thanks Andy, I wasn't sure if it was safe to use my original charger, but as its so simple to lift off the seat I will just do that ,and use the crocodile clips directly to the terminals rather than buy an Optimate 4, and use the aux socket. The issue only arose yesterday when the bike refused to start, I guess the cold weather has put paid to the original battery which is nearly 6 years old, so a new Motobatt is due to arrive tomorrow.
If you are connecting to the battery terminals Kim, then there is no need to spend nigh on ?70 for an Optimate 4 and the extra required Canbus lead to go with it.

The only reason I forked out my readies was mainly because my old Oxford maximiser was just about cream crackered anyway
 

Shakey

Beaky Farkler
Does the Motobatt use the same tech as the Odyssey and therefore have the same benefits? They seem to be remarkably cheaper if they are like for like.
I now they are apparently made in Argentina but so is a lot of Malbec :lick:

BTW According to the R1200R forum, fitting the Odyssey to the R requires some padding as the replacement is smaller!
 

eyore

New Member
Not sure if they are the same, the Motobatt has absorbed glass fibre mat wrapping around the plates. If you read the blurb for both they seem to make all the same claims.:rolleyes: If the Odyssey is a lot dearer I would want to know exactly why, and what you get for the money.I have looked at their website and cant see any justification.
Anyway as mentioned the MTBX14AU on its side is the tightest fit you can imagine, luckily you have the option of two positive and two negative terminals to choose from,so it works fine.
 
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