I guess you can use that kind of battery bottle : 139.08£ 31% de réduction|San yo Batterie pour moteur de vélo électrique, Mini bouteille, Bafang TSDZ2, 18650 W, 250W, 350W, 36V, 10,5 Ah, 9Ah, 48V, 7Ah, 500 Eddie ion ion | AliExpress
it's a bit more complicated, you need to have a diode to ensure nothing will flow from the original battery to the range extender. Or you can just decide to plug the range extender when your main battery is lower in voltage than you range extender
Hey,
I’ll let others comment but my thoughts :
1- tye higher the voltage, the lower the amps for a similar power, so less heat
2- they said it was a good compromise between heat management and cells placement in the battery casing
3- someone on the forum run a 48v battery on a 43v firmware...
I’ve seen that the charger sometimes is plugged but does not charge, you have to plug it again or turn it in order to have a good contact, maybe that’s the issue
I've also bought one on Aliexpress, the M03 : 18.38£ 47% de réduction|Enquêter avant étanche pour vélo, 3000 lumens, éclairage de sauna, feux de route et de illeur, éclairage de vélo en alliage d'aluminium, feu de vélo VTT | AliExpress
I did a custom battery with spare cells and it's very bright!
I only have 2000 lumen! In complete darkness in the forest it was a bit scary 😃
I now use a 3500 lumen on my helmet in addition, I ran into a runner in the woods, I think he didn’t recover fully his vision yet 😂
On my side I used a dc dc converter pluged on the main battery. My light was too powerful for the default light output.
I think I will use the integrated light connector for the rear light
I was trying to understand what is the worst thing that could happen ?
The cells will heat because you're draining more than they can deliver, by heating, they will deliver more power and stabilise ? that's it ? I don't see any risks here but I'm far from being an expert :)