GoodWe BAT 14.3kWh LV Lithium Battery (51.2V-260A-IP20)

GoodWe BAT 14.3kWh is a high power low voltage battery for homes that want to run heavy loads from storage. Its 280Ah LiFePO4 cells store 14.3kWh at 51.2V, with 13.8kWh usable, and what sets it apart is the current it can deliver: up to 224A continuous charge and 260A continuous discharge, with a peak output of 20kW for 15 seconds. That headroom means an air conditioner, a pump or an induction cooker can start from battery without the voltage sagging. GoodWe quotes up to 6,500 cycles, and parallel expansion is supported if you want more capacity later. It communicates with the inverter over CAN and RS485, and it is designed to pair with GoodWe’s ES Uniq and ET LV hybrid inverters. Mounting is wall or floor, and cooling is natural, so there are no fans to make noise.

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GoodWe BAT LV Lithium Battery - Key Features

• 14.3kWh of energy, with 13.8kWh usable
• 51.2V nominal voltage on 280Ah LiFePO4 cells
• Up to 224A continuous charge and 260A continuous discharge
• Peak output of 20kW for 15 seconds
• Up to 6,500 cycles
• Parallel expansion supported
• CAN and RS485 communication
• Natural cooling and wall or floor mounting
• Certified to IEC 62619, IEC 63056 and IEC 60730-1

GoodWe BAT LV Lithium Battery - Technical Specifications

• Brand: GoodWe
• Series: BAT (low voltage)
• Model: GW14.3-BAT-LV-G10
• Cell type: LFP (LiFePO4), 280Ah cells
• Nominal voltage: 51.2V
• Total energy: 14.3kWh
• Usable energy: 13.8kWh
• Continuous charge current: up to 224A
• Continuous discharge current: up to 260A
• Peak output: 20kW for 15 seconds
• Cycle life: up to 6,500 cycles
• Communication: CAN / RS485
• Cooling: natural
• Protection: IP20 (indoor use only)
• Mounting: wall or floor
• Certifications: IEC 62619, IEC 63056, IEC 60730-1, UN38.3

Who Should Buy This Battery?

• Homes that run air conditioners, pumps or other heavy loads from battery
• Owners of a GoodWe ES Uniq or ET LV inverter
• Households that want one large battery with a strong discharge rating
• Buyers who plan to add more storage in parallel later
• Installers who want a quiet, fanless battery for living spaces
• Anyone who values a safety-certified LiFePO4 battery

Why Discharge Current Matters

Capacity tells you how long a battery can run, but discharge current tells you how much it can deliver at once. A battery with high capacity but a low current limit may not start a big motor, even though it has plenty of stored energy. At 260A continuous on a 51.2V system, this battery can supply a very large load, which is useful when an air conditioner and a pump start together. Your inverter also has its own current limit, so the useful figure is the lower of the two, and your installer should check both before you buy.

GoodWe BAT LV Lithium Battery - Compatibility and Installation Guide

• Match it with a GoodWe low voltage hybrid inverter, such as the ES Uniq or ET LV series
• Install indoors in a dry, ventilated place
• Use heavy duty cables of the correct size, because the currents are high
• Check polarity on every connection
• Follow the manual for CAN and RS485 wiring and for paralleling
• Installation should be done by a qualified solar installer

Frequently Asked Questions

What is the capacity?
14.3kWh total, 13.8kWh usable.

How much current can it deliver?
Up to 260A continuous discharge.

How many cycles does it last?
Up to 6,500 cycles.

Can I add more batteries later?
Yes, parallel expansion is supported.

Which inverters does it work with?
GoodWe low voltage hybrid inverters such as ES Uniq and ET LV.

Can I use it outdoors?
No. IP20 is for indoor use.

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