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Harrison Clark's avatar

You wished for a means to limit charging current on the Bluetti battery. I'm taking you literally. You aren't asking to disconnect above a certain charge current, but you want to limit that current. That's easier said than done. The MosFETs in a BMS are on/off devices. They can't be modulated to provide voltage drop with the limited heat sinks they have. Let's assume you have one or more chargers attached that can develop 100 amps and you want to limit battery charge current to 50 amps. To do that it may take a half volt or more of voltage drop (say, from 14.4 Volts to 13.9 Volts. Or maybe 3/4 of a volt drop. With 50 amps flowing, that's 25 Watts or more of heat dissipation in the BMS. That's far more than the MosFETs generate in normal charging mode. It would take sizeable heat sinks and cooling air to dissipate that power. I don't think any BMSs found in compact batteries are built to do that. Regards, Harrison

Gary Reed's avatar

Ray,

I really cannot believe you are not traveling the Southwest this winter and staying in Canada because of the political climate.

We have a home in a gated community in Ft. Myers and we have many Canadian friends and there are many Canadians who are snow birds there now enjoying the USA Florida weather.

We are all friendly to each other and there is absolutely no political friction here everyone is friendly as always.

You are making a big mistake not coming to the USA this year.

Please change your mine about spending the winter in Canada.

Gary Reed

Ft. Myers, Florida

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