UK Monster Owners Club Forum - View Single Post - Lithium batteries, overcharging and fire.

utopia · 31-07-2017, 11:03 AM

Well, I've done nothing more on this since my last post but I did come across a bit more info on the subject.
This is in the form of a warning from Electrex that their reg/recs are not suitable for any type of lithium battery.
Here ....https://www.dropbox.com/s/f5ekhntoaf...Types.pdf?dl=0

This has got me fretting a bit again.
I think its time to swap to a Shindengen mosfet reg/rec.
I don't have time at the moment so it will have to wait 'til the winter now.

If anyone has any recent info on the most suitable currently available Shindengen unit (ie part no.) that might be handy .. I've seen a number of different part numbers quoted and might as well fit the most appropriate while I'm at it.

I guess the sort of system that I was driving at in my earlier posts is one which will detect an overcharge of 15v or more and immediately cut the battery charging circuit.
Obviously this could lead to a roadside breakdown as the battery subsequently discharges, but this should be flagged up by the charge light coming on in the normal way, which should be adequate warning.
Unfortunately my bike doesn't have a charge warning light.
If I do suss out a suitable cutout circuit/device I guess I'll need to fit a charge warning light too.
.......if.

31-07-2017, 11:03 AM	#22
utopia No turn left unstoned Join Date: Jun 2010 Location: leicester Bike: M750 Posts: 4,545	Well, I've done nothing more on this since my last post but I did come across a bit more info on the subject. This is in the form of a warning from Electrex that their reg/recs are not suitable for any type of lithium battery. Here ....https://www.dropbox.com/s/f5ekhntoaf...Types.pdf?dl=0 This has got me fretting a bit again. I think its time to swap to a Shindengen mosfet reg/rec. I don't have time at the moment so it will have to wait 'til the winter now. If anyone has any recent info on the most suitable currently available Shindengen unit (ie part no.) that might be handy .. I've seen a number of different part numbers quoted and might as well fit the most appropriate while I'm at it. I guess the sort of system that I was driving at in my earlier posts is one which will detect an overcharge of 15v or more and immediately cut the battery charging circuit. Obviously this could lead to a roadside breakdown as the battery subsequently discharges, but this should be flagged up by the charge light coming on in the normal way, which should be adequate warning. Unfortunately my bike doesn't have a charge warning light. If I do suss out a suitable cutout circuit/device I guess I'll need to fit a charge warning light too. .......if.