Description
xVictron LiFePO4 Battery 51.2V 100Ah NG — BAT548110620
The Victron LiFePO4 Battery 51.2V 100Ah NG is a lithium iron phosphate battery designed for professional off-grid, backup and solar storage installations. At 5.12kWh nominal capacity and 51.2V nominal voltage, it suits 48V battery bank configurations commonly used with Victron inverter-chargers and Multi systems. This is the NG (New Generation) variant, intended for installers and system integrators who require a reliable, well-supported lithium battery from a proven manufacturer.
Key Features
- Lithium iron phosphate (LiFePO4) chemistry provides a stable, thermally safe cell type well suited to stationary storage applications.
- 51.2V nominal voltage makes this battery directly compatible with 48V system architectures used across Victron inverter and charger product lines.
- 100Ah capacity delivers 5.12kWh of nominal energy storage per unit, with multiple units combinable for larger bank configurations.
- NG (New Generation) series designation indicates updated internal design compared to earlier Victron LiFePO4 battery generations.
- Integrated battery management system (BMS) handles cell balancing, over-charge, over-discharge and temperature protection without requiring an external BMS unit.
- Weight of 37kg reflects the energy density typical of LiFePO4 prismatic cell construction at this capacity.
- GTIN: 8719076064756 — genuine Victron Energy product, SKU BAT548110620.
Product Overview
LiFePO4 chemistry is the standard choice for stationary battery storage in professional solar and off-grid installations. Compared to other lithium chemistries, LiFePO4 offers a flatter discharge curve, lower risk of thermal runaway and a longer cycle life, all of which matter in systems that are cycled daily over many years. The 51.2V nominal voltage aligns with the 48V bus used in most serious off-grid and backup systems, avoiding the losses and complexity associated with lower voltage configurations.
The NG series represents Victron's current generation of standalone LiFePO4 batteries. The integrated BMS communicates with compatible Victron equipment, allowing the system to respond to battery state in real time. This is particularly relevant in systems using a Victron MultiPlus, Quattro or other VE.Bus-compatible inverter-charger, where the BMS can signal charge current limits and disconnect commands directly to the inverter. Installers should verify communication cable and protocol compatibility with the specific inverter or charge controller being used.
At 37kg, this battery requires two people or mechanical assistance for safe positioning during installation. Units can be mounted upright and connected in parallel to increase capacity, or in series-parallel configurations where the system design permits. Always follow Victron's published wiring and fusing guidelines for lithium battery banks.
Technical Specifications
| Specification | Value |
| SKU | BAT548110620 |
| Nominal Voltage | 51.2V |
| Capacity | 100Ah |
| Nominal Energy | 5.12kWh |
| Chemistry | Lithium Iron Phosphate (LiFePO4) |
| Series | NG (New Generation) |
| Weight | 37kg |
| GTIN | 8719076064756 |
| Brand | Victron Energy |
Applications
- Off-grid solar systems using 48V inverter-chargers such as the Victron MultiPlus or Quattro range.
- Grid-tied battery backup systems where a 48V lithium bank is required for critical load support.
- Marine and vehicle installations requiring a high-capacity 48V lithium battery with integrated BMS.
- Commercial and agricultural off-grid sites where daily cycling and long service life are priorities.
- Expanding existing Victron LiFePO4 NG battery banks by adding units in parallel.
What Is Included
- 1 x Victron LiFePO4 Battery 51.2V 100Ah NG (BAT548110620)
Installation Notes
This battery operates at 51.2V nominal, which is classified as a high-voltage DC system. Installation must be carried out by a qualified electrician or accredited installer with experience in lithium battery systems. Appropriate fusing, cabling and disconnection devices must be sized and installed in accordance with Victron's wiring guidelines and applicable UK wiring regulations. For solar PV systems connected to the grid, G98 or G99 compliance requirements apply to the inverter side of the installation. Do not mix NG series batteries with earlier Victron LiFePO4 generations in the same bank without confirming compatibility. At 37kg, always use two people or mechanical lifting aids when positioning the unit.
Specifications
x| VOLTAGE AND CAPACITY | |||
|---|---|---|---|
| Battery Model | LFP 51.2 V/100 Ah | ||
| Nominal Voltage | 51.2 V | ||
| Nominal Capacity @ 25 °C | 100 Ah | ||
| Nominal Energy @ 25 °C | 5120 Wh | ||
| Capacity Loss | <1% per 100 cycles | ||
| Energy Loss | <1% per 100 cycles | ||
| Round Trip Efficiency | 92% | ||
| CYCLE LIFE (≥ 80% of Nominal Capacity) | |||
| 80% DoD | 2500 cycles | ||
| 70% DoD | 3000 cycles | ||
| 50% DoD | 5000 cycles | ||
| DISCHARGE | |||
| Max Continuous Discharge Current (C-rate) | 100 A (1C) | ||
| Max Pulse Discharge Current 10s (C-rate) | 200 A (2C) | ||
| End of Discharge Voltage | 44.8 V | ||
| Internal Resistance | 8 mΩ | ||
| CHARGE | |||
| Charge Voltage | Between 56 V and 56.8 V | ||
| Float Voltage | 54 V | ||
| Max Continuous Charge Current (C-rate) | 100 A (1C) | ||
| Max Pulse Charge Current 10s (C-rate) | 200 A (2C) | ||
| GENERAL | |||
| BMS-es | Lynx Smart BMS NG 500 A / 1000 A (M10 busbars) | ||
| Cell Measurements | Cell voltages and temperatures, battery current | ||
| Battery BMS Interface | Male + female cable with M8 circular connector | ||
| Bluetooth | In the BMS | ||
| Max Batteries per BMS | 50 (384 kWh per BMS) | ||
| Battery Firmware Updates | Automatically updated by BMS | ||
| Repairable | Yes (cover can be removed with screws) | ||
| OPERATING CONDITIONS | |||
| Operating Temperature | Discharge: -20 °C to +50 °C | Charge: +5 °C to +50 °C | ||
Return Policy
xWe offer a 14-day, no-quibble returns or replacement policy because we want you to be totally satisfied with your purchase.
If you are unhappy in any way with your purchase, you can return it for a refund or a replacement, as long as you return it in the same condition as it arrived (original/undamaged packaging and product) and within 30 days of receiving it. We will pay for your return postage on a faulty item as long as you send it using Royal Mail 2nd class recorded delivery (for EU or International Shipments, you have to use our UPS account, we will provide you with a return label)
Please keep in mind the following:
- Non-faulty items returned after 14 days and/or not in their original, undamaged packaging can only be exchanged for store credit - 15% off the items returned.
- Items returned within 14 days but not in their original and undamaged packaging will also incur a -15% charge per package.
- If you return an item that doesn't adhere to our returns procedure or doesn't include a returns form, you may be liable for a £10 administration fee
- Individual items from a bundle can't be returned, refunded or exchanged. If you want a refund/credit/exchange for a bundle, all items must be returned to us.
Before you return your item, please make sure that:
- You follow our returns process (outlined below)
- The goods and packaging are undamaged
IMPORTANT: We need to be able to identify an item with your order. We can only do this if you follow our returns process. Please do not send us items back that do not follow this process as they cannot be identified properly and will not be replaced or refunded.
What delivery method do I need to use when returning an item?
You must send the goods back to us via Royal Mail 2nd class recorded delivery. Refunds on faulty items returned are reimbursed within 5 working days.
Can I return just one item from multiple purchases?
Yes. Once you start the returns process you will go to a page that will allow you to choose which items you want to be replaced or refunded.
Returning faulty goods
If your item is faulty, you need to follow the returns policy, where you will be able to state that it’s faulty. The product will then arrive at our warehouse for testing.
If your purchase is not within 14 days
You can still exchange your item for a different product or for credit to use on the Voltacon Solar or Ledison-led-lights.co.uk websites (-15% from the credit amount).
Returns outside of the 14-day period do not qualify for the free returns policy.
Returning an item within the warranty
If you have a warranty and want to return a faulty item, you just need to follow our standard returns process. When we receive your item, we will then check that it’s within warranty and for any faults before arranging a replacement.