September 3, 20214 yr Hi guys last year a built ebike 1500w wheel with 1500w controler and 52v 20ah battery with 40amp bms. I know the wheel can take a lot more power is there anyway of pushing more without changing the battery
September 3, 20214 yr Hi guys last year a built ebike 1500w wheel with 1500w controler and 52v 20ah battery with 40amp bms. I know the wheel can take a lot more power is there anyway of pushing more without changing the battery What's the max. amp rating of your controller?, 1500w doesn't really mean anything.
September 3, 20214 yr It is the battery BMS that dictates the continuous current that can be suppled, it may be possible to replace the BMS with a higher continuous discharge one BUT you would need to know the exact cells used and the parallel configuration. Likely the current BMS is optimised for the cells current rating so the answer would be no. The controller current rating will be useful to know, it should be marked on the controller. It would be unwise to have a controller with more then 35a max current rating. The battery BMS will also have an over current protection of more then 40a (possibly as much as 80- 100a), this though is only for a temporary over current for about 10 duration..
September 3, 20214 yr Author Hi guys the Controller amps is 35max and the battery is 40amp as for the battery cell brand not got a clue with out stripping the battery
September 3, 20214 yr The battery and controller are optimised then for current the battery can supply.
September 3, 20214 yr Hi guys the Controller amps is 35max and the battery is 40amp as for the battery cell brand not got a clue with out stripping the battery You are pretty much on the limit of your BMS cut off limit then. It's always worth having a little buffer below the max. limit of components. Some battery builders/sellers fit various BMS's to the same pack, so your pack maybe able to supply more, but pushing the cells too hard will shorten their life span and could be potentional dangerous. A link to the pack you have may help with furthur advise.
September 3, 20214 yr Author Is hard triangle pack from a company in China called unipack power iam happy with the setup and battery running sweet after one year just won't more out of the wheel just a pic of my bike hope you like
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