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.
We provide lifetime customer support to ensure you enjoy a worry-free experience with our products.
Whether you have questions about installation, usage, or maintenance, our dedicated team is always here to help — anytime you need us.
Contact us (Email): service@better-ess.com
Nominal Voltage: 51.2V
Nominal capacity: 200Ah
Battery Energy: 10240Wh
Internal resistance: ≤100mΩ
Active Balancer: 0~5.5A, 5mV
Fire Extinguisher Type: LFP Temperature sensing
Cycle Life: 6000+ Cycles @ 0.2C Charging/Discharging at 50%DOD,Until 70% Capacity.
Self discharge: ≤3.5%(every month@25°C)
Charging voltage: 51.2~58.4V
Standard charging current: 40A
Maximum sustained discharge: 100A
Standard discharge current: 40A
Maximum discharge current: 100A
Maximum pulse current: 200A(<30S)
Charging temperature: 0°C~45°C
Discharge temperature: -20°C~60°C
Dustproof and waterproof rating: IP45
Shell material: SPCC
Size: 1005x450x300mm
Weight:140kg
Connection port: M8*7+M12*2
Communication Ports: RS485*3+CAN*1+RS232*1
Warrantty: 10 years Life, 5 years Warranty
PV CHARGE
PV Charge Type: MPPT
Maximum Input Power: 5500W
PV Charging Current: 0~100A
PV Operating Voltage Range: 120~500V
MPPT Voltage Range: 120~450V
AC CHARGE
Maximum Charge Power: 3150W
AC Charging Current Range: 0~60A
Rated Input Voltage: 220/230Vac
Input Voltage Range: (170Vac~280Vac) ±2%/(90Vac-280Vac)±2%
AC OUTPUT
Rated Output Power: 5500W(16S)
Maximum Output Current: 22A
Frequency: 50Hz/60Hz
Overload Current: 40A
BATTERY INVERTER OUTPUT
Rated Output Power: 5500W(16S)
Rated Output Voltage(Vac): 230Vac
Frequency: 50Hz
Auto Switch Period: <15ms
THD: <3%
Thanks for subscribing!
This email has been registered!
Battery capacity is very large, can reach more than 295ah, after 15 days of transport received the battery is very good, no damage, I am very satisfied
Einfach perfekter Service Von der Bestellung bis zur sehr pünktlichen Auslieferung perfekt. Fragen per Mail werden schnell und höflich beantwortet. Die Qualität der mir gelieferten Zellen ist mehr als gut, wenn noch der wirklich gute Preis berücksichtigt wird, beinahe unglaublich
Happy with purchase and would recommend. Unit arrived a month early (ordered end of march, expected start of june, showed up start of may) though i didn't know it was coming until fedex showed up at my door.
All ok. Equal voltage on all. Batteries are all flat, none of battery is swolen even 1mm.
Schnelle Lieferung, sehr gut verpackt, Kapazität aller Zellen entsprechen den Angaben der mitgelieferten Zertifikate, qualitativ hochwertige Anmutung