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Will a GT550 battery fit a GT380?
Posted: Fri Apr 04, 2014 1:56 pm
by sportston
Just curious as to whether a GT550 battery will fit a GT380 without any problems with size or charging. Anyone know?
Re: Will a GT550 battery fit a GT380?
Posted: Fri Apr 04, 2014 3:09 pm
by ConnerVT
Electrically, there is usually no problem using a (slightly) higher capacity battery.
The problem is, will it physically fit? My guess is that the battery will be too tall.
GT550 12N11-3A
GT380 12N7-4A
Re: Will a GT550 battery fit a GT380?
Posted: Fri Apr 04, 2014 3:44 pm
by Alan H
The higher capacity battery on the 550 is for the electric start - not needed on the 380, and they are different sizes.
136 x 90 x 155mm against 136 x 76 x 132 mm
For those still on old money, the height is the same, width just under an inch wider (550) and just over a half inch thicker (550). So I would guess one wouldn't fit a 380.
Re: Will a GT550 battery fit a GT380?
Posted: Fri Apr 04, 2014 4:24 pm
by ConnerVT
Alan, are you sure you got you LxWxH correct? I was going by what was posted in the specs at Impact Battery. To me, height is always critical, as you don't want that + terminal coming in contact under your seat. Bad things, man.
Size matters.jpg
Re: Will a GT550 battery fit a GT380?
Posted: Fri Apr 04, 2014 6:27 pm
by sportston
Ok. Better stick with a standard GT380 one then! Thanks for the advice guys
Re: Will a GT550 battery fit a GT380?
Posted: Sat Apr 05, 2014 12:59 am
by Alan H
ConnerVT wrote:Alan, are you sure you got you LxWxH correct?
Yup.
They have worked the sizes out a little off on the 550 battery - divide the millimetre sizes be 25.4 for inches, but mine are correct.
Same height, different width/depth.
Re: Will a GT550 battery fit a GT380?
Posted: Sat Apr 05, 2014 8:17 am
by Vintageman
Here's what mine are like
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http://i266.photobucket.com/albums/ii25 ... /004-6.jpg" onclick="window.open(this.href);return false;
Re: Will a GT550 battery fit a GT380?
Posted: Sat Apr 05, 2014 11:24 am
by Alan H
Alan H wrote:ConnerVT wrote:Alan, are you sure you got you LxWxH correct?
Yup.
They have worked the sizes out a little off on the 550 battery - divide the millimetre sizes be 25.4 for inches, but mine are correct.
Same height, different width/depth.
Just had another look after cleaning my specs and realised that the sizes are LxWxH (US site) rather than HxWxL as I would expect 'over here'.
Mea culpa for not realising.
So the height and depth are different and width is the same as the pics above show.
Re: Will a GT550 battery fit a GT380?
Posted: Sat Apr 05, 2014 2:11 pm
by Craig380
I use a 12N9 on my 380, it's about 10mm taller than the standard 380 12N7 battery but still fits easily. But I only do this because I'm running total-loss electrics at the moment. A fully-charged 12N9 is good for a couple of hours riding.
However, if your charging system works, there's no benefit to fitting a bigger battery.
