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@pdlouche
Speaking totally technically, theoretically, forgetting the sage advice to stick with Pb...
Background 1:
The GN125 is kicking out a healthy 13.5-14V across the battery terminals while idling. There’s little issue with the Pb battery, and I have it running quite well. Hitting the byways/greenlanes has put some strain on the bike, sometimes it is less than happy starting again after being shaken all over the place then turned off to chat/check route.
The current Pb is a YB7-A, new a few months back so still good. It’s 8Ah apparently.
Question 1:
There are a few £50-70 Lithium batteries but they are 2Ah or thereabouts (Exide, etc).
If Lithium charges so fast, do I really need 8Ah? Short of a failing stator, why else would I need the larger capacity? Headlights etc draining it faster than it can charge?
Background 2:
I am also pulling some extra current, namely some of those mini aux LED’s - I leave these off most of the time but want them on as running lights during the day now. They only pull 0.3A extra, once the others arrive it will be closer to 0.5A or so. I may have even more current draw by the time lockdown is over, if ebay stuff keeps tempting me.
Question 2:
What about a smaller lithium battery for these alone?
I don’t trust the lithium ion battery packs I see on ebay, seems like guaranteed fire hazard. I was going to use a smaller Pb I have hanging around but would prefer a lithium. Any recommendations?
Bonus question:
I’d also quite like LED headlight to reduce current draw. Gotta fit inside (or replace) the original round headlamp. Any tips?