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Hi folks. Can someone help me make sense of what my system designer is telling me. They're saying I'm limited to a 3.8kW system due to the size of my mains disconnect at the meter. My house is laid out like this: Meter is at the curb with a 125A breaker/disconnect Underground run to my house...

Hi, I'm planning to use a 8S 272Ah LiFePO4 battery for emergency grid-down situations. I'll have access to about 1.5kW of AC power during the day from the SPS outlet of a SMA Sunny Boy inverter. So I'm looking for a AC charger for the 24V in the 40A+ range. A lot of the AC LiFePO4 chargers I...

I'm considering using one of these battery disconnect switches between my battery bank and inverter but I'm a little confused about their current rating. If the switch is rate for 100A, can it safely switch on/off a live 100A load OR does it mean it can support a 100A load that's connected AFTER...

I've a 120A JBD BMS and wondering if the "lock" to enable charge/discharge can be used to switch on/off a live load / charger? Basically if I've a 100A load or charger - is it fine to use the BMS's "lock" to connect and disconnect? Will that harm the FETs or cause any arc'ing?

I've got four Lishen 272 Ah cells I brought from Amy of Luyuan via Alibaba back in 2021. They've only been cycled twice. Also will include a JBD 100A BMS with Bluetooth. Asking $400. Pick up in Austin, TX. Sorry - I can't pack them for shipping.