GSL 14.34kWh 48V LiFePO4 Wall-Mount Home Battery (DC UL9540 Certified)
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Description
Description
Store 14.34 kWh of solar or grid power and keep your home running through outages. The GSL Energy 51.2V 280Ah LiFePO4 wall-mount battery is UL9540A tested and UL9540 certified, built with UL1973-certified cells, rated for 8,500+ cycles, and expands from one unit for a home to 16 units in parallel for commercial or off-grid systems.
Have a 48V, 8–12kW inverter? Adding the GSL 14.34kWh battery can make meeting ESA’s UL 9540 requirement easier. Its DC UL 9540 certification will enable it pair with most popular inverters to make the system to meet UL 9540 requirements. You will have the flexibility of choosing a wide range of inverters other than only a particular model.
How is GSL’s DC UL 9540 certificate different?
Model-specific certificates: Some batteries are certified only with particular inverter models. To use that certified combination, your inverter must be one of the models listed.
GSL’s certificate: Lists system technical specifications without naming individual inverter models, so it offers more flexilbility and a wide range of inverters to select. Details please check the UL9540 certificate in the datasheet and user manual section
Availability: the standard Wall Mount ships from our Waterloo, Ontario warehouse. The self-heating version may be built to order; call 1-800-858-4318 for the current lead time before ordering.
Want a complete home backup system? Get this battery paired with a Growatt 10kW hybrid inverter in our Growatt + GSL Home Backup System, with 1 or 2 batteries.
Choose your version
| Wall Mount | Wall Mount Self-Heating | |
|---|---|---|
| Best for | Heated indoor spaces: basement, utility room, heated garage | Unheated garages, cottages, cabins and other spaces that drop below 0°C |
| Charging below 0°C | No | Yes, cells are warmed before charging |
| Price | C$4,139.99 | C$4,279.99 |
Specifications
| Capacity | 14.34 kWh (51.2V × 280Ah) |
| Chemistry | LiFePO4 (lithium iron phosphate) |
| Cycle life | 8,500+ cycles |
| Installation | Indoor wall mount, IP20 (dry indoor locations) |
| Dimensions (W×H×D) | 900 × 675 × 200 mm |
| Weight | approx. 131.7 kg |
| Charging temperature | 0°C to 45°C for the standard model; the self-heating model warms the cells below 0°C |
| Expansion | Up to 16 units in parallel |
| Communication | CAN / RS485 closed-loop with hybrid and off-grid inverters |
| Monitoring | Wi-Fi and Bluetooth |
| BMS protection | Overcharge, over-discharge, overcurrent, short circuit, temperature, cell balancing |
| Safety testing | UL9540A unit-level test, indoor wall-mount residential configuration (SGS report CQES250900105501); cells certified to UL1973 |
| Warranty | 10 years |
| In the box | Battery module, battery-to-inverter cable, wall-mount bracket, user manual |
What 14.34 kWh runs
Roughly a full day of essentials during an outage: fridge, furnace fan, lights, internet and phone charging. Or shift solar into the evening to cut your power bill. Add more units for whole-home backup or larger off-grid systems.
Built for
- Home battery backup, with or without solar
- Solar self-consumption and peak-rate savings
- Off-grid homes, cottages, cabins and farms
- Commercial and multi-unit energy storage (up to 16 in parallel)
About the safety testing
UL9540A is the fire-propagation test that inspectors and insurers look for on home energy storage. In GSL's test of this wall-mount model, a forced thermal runaway stayed inside the battery: no external flames, no flying debris and no explosion, and neighbouring units stayed below 32°C.
Installers and multi-unit orders
Building a system with several batteries or supplying customers? Contact us for contractor and volume pricing, or call 1-800-858-4318 (Mon–Sat, 9–6 ET).
Pair it with
- Growatt 10kW + GSL Home Backup System (complete kit)
- Hybrid inverters for grid-tied backup with solar
- Off-grid inverters for cottages and off-grid homes
- Automatic transfer switches
FAQ
Can it be installed outdoors?
No. This is an IP20 indoor battery for dry locations such as a basement, utility room or garage. Choose the self-heating version if that space drops below freezing.
Do I need the self-heating version?
Yes if the battery will sit somewhere that drops below freezing, such as an unheated garage, shed or cottage. LiFePO4 batteries should not be charged below 0°C without heating.
Can I keep my existing inverter?
Yes, if it meets the requirements covered by GSL’s UL 9540 certification. Contact us with your inverter model to check.
Does it qualify for BC or Ontario battery rebates?
Rebate programs set their own product and installer requirements. BC Hydro, for example, requires a battery on its qualified list and an installer from its contractor network. Call us before buying and we'll tell you where this battery currently stands.
How is it delivered?
Each module weighs about 130 kg and ships on a pallet by freight. Plan for two people or lifting equipment to move it into place.
Do I need an electrician?
Yes. Connecting a home battery to your electrical system should be done by a licensed electrician, and permits and inspection may be required where you live.
Shipping & Returns
Shipping & Returns
- Shipping: Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days depending on your location.
- Returns: You may return or exchange products within 30 days of receiving your order. Items must be in original condition with proof of purchase.
- If your item is defective or damaged due to manufacturing issues, we’ll gladly replace it at no additional cost.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Talk to Our Solar Experts
Have questions about this system? Our solar specialists are here to help you choose the right setup for your needs. Whether you need sizing guidance, installation support, or bulk pricing, we're ready to assist.