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  1. sdnative

    How Long can I run my 2000 watt inverter?

    Also, forgot to mention above but keep in mind that the usable capacity is affected by the charge/discharge rate. The higher the rate the less usable capacity you will extract. The 138Ah assumes you discharge at 0.2C / 27.6A or below. I do not believe that battery has a built in BMS. You may...
  2. sdnative

    How Long can I run my 2000 watt inverter?

    I found this spec sheet. As you said, 150A max discharge with 300A overload for up to 30 seconds. That would allow just under 2000W AC power when the battery is fully charged, and about 1600W AC power when the battery is low SoC. On the charge side, 40A is under the C/2 max charge rate so you...
  3. sdnative

    How Long can I run my 2000 watt inverter?

    As far as charging, if you used 1000Wh of your battery, and you are charging at 20A x 12.8V = 256W, it would take about 4 hours to recharge the battery. This is a ballpark number as the charge rate will vary depending on battery voltage and the charging phase (bulk, absorption, etc)
  4. sdnative

    How Long can I run my 2000 watt inverter?

    power (W) x time = energy (Wh) power = voltage x current To convert battery capacity (Ah) to battery energy (Wh) multiply by nominal voltage (12.8V for LFP) . As your battery discharges the voltage will drop and the current will rise assuming constant power load. So your 138Ah battery is...
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