Hi, I have a question regarding the Charger 1 alternator charger. I know it can charger various “power stations” by setting the customized voltage. I’m wondering if the Charger 1 can charge a standalone lifepo4 batter like this 24V 100ah bare battery:
thank you!
James
Hi @wangjam
Just in theory, it could. But the problem is missing “battery features”. The Charger 1 is designed to deliever a permanent charging voltage, it doenst know when the battery is full. So it cant throttle any power, adjust the charging voltage etc. Just use a regular Battery Charger for 24V that powered by a Bluetti Powerstation
greetings
Erik
Thank you Erik! Maybe the next version can vary/throttle the input, just like the Etaker F2000. thanks again.
someone mentioned that as long as the lifepo4 battery has BMS built-in. Charger One should work. This is his/her response:
FWIW I routinely use a fixed 55-amp power supply set to 14.4 volts to charge my 12-volt 200 Ah LiFePO4 battery, the battery accepts current until the voltage reaches 14.4 and the tail current is under a few amps and then the BMS isolates the battery and thus terminates the charge, which is the expected behavior. As mentioned if you were using a battery with a different chemistry and no BMS then you would need a more tailored charge algorithm, but with a LiFePO4 with an internal BMS that isn’t necessary.
The purpose of a DC-DC charger for a BMS-equipped battery is to 1) maintain proper voltage and 2) limit current to an appropriate value and that’s all any other the other chargers mentioned will do, and the Charger One will do it as well. What the Charger One lacks is the ability to handle other battery chemistries besides LiFePO4 so it is not recommended in the generic ‘battery charger’ role, but in the case of the battery you propose (LiFePO4 with full BMS, where the charging intelligence is in the battery, not the charger) it will perform essentially the same function as the others.
Hi @wangjam
this can be true but doesnt need to. There are BMS with different levels of functionality. If your battery have a BMS that is able to fully act like a “Battery Charger” (like thottle current when battery is nearly full or also dont accept any current when full), then im agree with this answer.
But Batterys without any kind of “regulator” like the BMS seems in your battery, the charger 1 doesnt work for it
greetings
Erik