why i call Li fussy
Hi all, This doesn't cover all the concerns for me, but it does show at least some of them: https://youtu.be/_PgthByAYz4
Forum Discussion
BFL13 wrote:
Not clear how an inverter/charger, which needs 12v to operate, can supply 12v to the rig while the BMS has disconnected from the cells. The "charger" can't charge to run the heater or anything else unless the inverter/ charger has 12v already.
A converter could supply 12v to the rig with no battery.
This is not an issue - the cells are not disconnected from the charger. Before you attempt to charge it is in its 'normal cold configuration' where it will provide 12V but not allow charging. The inverter/charger will see it as a 12V battery and start charging. Once the charging starts, the battery shunts that current to the heater until the battery is warm enough to charge. The charger doesn't see any of this.
For some reason there seems to be a great effort to pick this apart without really understanding how it works. The funny thing is, the sky is not falling and there are people actually out there using these.
If you are actually interested in how LiFePO4 batteries work, buy one and play around with it. Or even better, build your own.
