BetterESS 51.2V 400Ah 20kWh All-in-one Mobile ESS Built-in 10kW or 12KW Hybrid off-grid Three Phase Inverter 220V/230V,BMS,Equalization Module

We offer FREE shipping on all orders to most countries and regions.

Orders shipped from the EU warehouse: Free shipping is available to mainland EU countries (excluding remote islands).

Orders shipped from China: Free shipping is available to the EU, US, and other major regions (excluding remote islands).

Note: If your shipping address is in the UK, Switzerland, or Norway, and your order is shipped from our European warehouse, additional shipping fees will apply. Any customs duties or taxes incurred for these destinations must also be covered by the customer.

After you place an order, we will process it within 1-2 business days. Depending on your shipping address, we will ship from the nearest warehouse so you can receive your items as soon as possible.

Contact us at service@better-ess.com to check the stock level of your nearest warehouse.

We stand behind the quality and performance of our products through comprehensive warranty coverage.

All LiFePO4 Cells Batteries can receive a 5-year warranty, when used correctly according to the product manual instructions.

Mobile ESS and DIY Case Kit are also warranted for 5 years.

Battery chargers carry a 2-year warranty.

Accessories are covered by a 1-year warranty.

All warranties are effective from the date of purchase by the end user. Correct installation and usage as specified in the product manual are required to maintain warranty eligibility.

Please take time to carefully review the manual prior to setup and operation to ensure proper use and long-lasting performance from your BetterESS LiFePO4 System. We're here to support you throughout the warranty periods.