How much usable power does the 2.56kWh battery give?

The 200Ah LiFePO4 battery stores about 2.56kWh. Most owners draw it down to roughly 80 to 90 percent to protect battery life, so plan on a bit under that for daily use.

Can the 400W panel charge the battery in a day?

In strong sun the 400W panel can put out close to its rating, so a full recharge from half-empty is realistic on a good day. Shade, panel angle and heat cut that output.

Do I need an inverter for AC appliances?

Yes. The kit is a 12V DC solar and battery system. To run AC devices such as a laptop charger or blender you add a separate inverter sized to their draw.

Is the battery safe to mount inside the vehicle?

LiFePO4 chemistry is stable and the smart battery manages charging and discharge internally. Mount it securely, keep it ventilated and follow Renogy's install guidance.

Can I add more solar panels later?

Yes, the system can take additional panels as long as the charge controller's voltage and current limits are respected. Check the controller rating before expanding.