Recent content by carsten42

Another solution for HV inverters would be a bidirectional DC-DC converter. The HUAWEI LUNA2000 battery seems to use this technology. The question now is: Where to find such a DC-DC converter.

Another solution for HV inverters would be a bidirectional DC-DC converter. The HUAWEI LUNA2000 battery seems to use this technology. The question now is: Where to find such a DC-DC converter.

1) It is not possible to have perfectly balanced cells or packs which need no further balancing. Otherwise you would never need a balancer. 2) The balancing inside a pack is done by by the slave BMS. It takes energy from one cells and transfers it to another or just drains the higher cells via...

The HV battery is made of several LV batteries connected in serial. The master BMS watches all slave BMS to provide charge/discharge parameters via CAN to the load or charger. Every single BMS does balancing within the pack, but how is the balancing of the packs done, or is this just missing...

The HV battery is made of several LV batteries connected in serial. The master BMS watches all slave BMS to provide charge/discharge parameters via CAN to the load or charger. Every single BMS does balancing within the pack, but how is the balancing of the packs done, or is this just missing...

The HV battery is made of several LV batteries connected in serial. The master BMS watches all slave BMS to provide charge/discharge parameters via CAN to the load or charger. Every single BMS does balancing within the pack, but how is the balancing of the packs done, or is this just missing...

Recently some dealers started to offer 320AH for crazy cheap prices on Aliexpress including shipment. The offer says "75 day buy protection". Does it really work? Who gives this protection? Aliexpress or the dealer? https://www.aliexpress.com/item/1005002954598794.html...