Batteries
Batteries
BrandVictron Energy
Victron Lithium Battery 12.8V and 25.6V Smart
£ 567.41GBP · price may vary
BrandVictron Energy- Model
- VLB-12/100BMS
- Specifications
- 4
- System Battery Voltage12V
- ConnectivityBlueTooth
- Weight (kg)15
- Warranty3
Overview
Victron lithium-iron-phosphate (LiFePO4 or LFP) batteries offer a high level of safety and excellent performance at a reasonable price. Efficiency LFP batteries are particularly efficient in off-grid systems where you have a large battery and day-to-day only use the top 20% or so. In this situation lead-acid batteries often have an efficiency of ~50% but LFP batteries can achieve ~90%. In grid connected storage LFP batteries can still be significantly more efficient than the lead-acid equivalent. The round trip energy efficiency (discharge from 100% to 0% and back to 100% charged) of the average lead-acid battery is 80% as opposed to 92% from an LFP battery. Key specs & features Light - save up to 70% weight Energy dense - save up to 70% in space 5000 cycles to 50% DoD (depth of discharge) 3000 cycles to 70% DoD 2500 cycles to 80% DoD -20°C to +50°C operating temperature (charge current reduced at low temperatures) IP 54 13,6V float voltage 14V-15V charge voltage (<14,5V recommended) Victron lithium-iron-phosphate (LiFePO4 or LFP) batteries are the safest type of mainstream li-ion batteries BMS - With cell balancing and interface to connect to a Victron BMS For heavy duty applications and parallel/series connection. These batteries have integrated Cell Balancing, Temperature and Voltage control (BTV). Up to ten batteries can be paralleled and up to four batteries can be series connected (BTV’s are simply daisy-chained) so that a 48V battery bank of up to 2000Ah can be assembled. The daisy-chained BTV’s must be connected to a Victron battery management system (BMS).
Specifications
| System Battery Voltage | 12V |
|---|---|
| Connectivity | BlueTooth |
| Weight (kg) | 15 |
| Warranty | 3 |
How to read this datasheet
Victron Lithium Battery 12.8V and 25.6V Smart is listed with 4 published specifications from Victron Energy, including system battery voltage of 12V, connectivity of BlueTooth, weight (kg) of 15 and warranty of 3. Those figures are what decide whether this unit fits your system, so read them against the equipment it will connect to before comparing price.
For a battery, the figures that matter most are communication protocol (CAN or RS485) for talking to the inverter, nominal capacity in ampere-hours (Ah) or kilowatt-hours (kWh), usable capacity after depth of discharge — LiFePO4 typically allows 80–100%, lead-acid closer to 50% and system voltage: 12 V, 24 V and 48 V for low-voltage packs, or a high-voltage stack. Storage is what turns a solar array from a daytime bill-reducer into a system that covers evening loads and rides through outages. It is normally the single most expensive component, so sizing it correctly matters more than with any other part.
Before you buy a battery
The checks below apply to any battery. Run them against the specification table above — most disappointing solar purchases are compatible-on-paper units that fail one of these in practice.
- Compare usable kilowatt-hours, not nameplate capacity. A 100 Ah lead-acid battery at 12 V is nominally 1.2 kWh but only about 0.6 kWh is safely usable, while a 100 Ah LiFePO4 pack gives you roughly 1.0–1.2 kWh.
- Size from your evening consumption. Add up what actually runs after sunset for the hours you want covered, then divide by the usable capacity per unit — that number, not the array size, sets how many batteries you need.
- Check the continuous discharge rating against your inverter. A battery that stores plenty of energy but can only deliver 50 A cannot support a large inverter at full output.
- Match voltage to the inverter, and confirm the battery appears on the inverter maker's supported list. Closed-loop communication lets the inverter respect the battery's real charge limits instead of guessing.
Common mistakes
- Sizing the bank for total daily consumption rather than after-dark consumption, which typically doubles the cost for no benefit.
- Installing lithium packs in an unventilated, hot enclosure. Sustained high temperature is the fastest way to lose cycle life.
- Ignoring the charge current limit and pairing a large array with a small bank, which trips protection and shortens life.
Price and availability in United Kingdom
Victron Lithium Battery 12.8V and 25.6V Smart is listed at £ 567 (GBP) for United Kingdom. Solar pricing moves with supply, import duties and exchange rates, and distributors set their own margins, so treat this as a comparison reference and confirm the current figure before you order.
SolarBazaar compares equipment rather than selling it. Shortlist here on specification and price, then buy from an authorised distributor or installer in United Kingdom: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports Victron Energy locally before ordering.
Victron Lithium Battery 12.8V and 25.6V Smart — frequently asked questions
How much does Victron Lithium Battery 12.8V and 25.6V Smart cost?
Victron Lithium Battery 12.8V and 25.6V Smart is listed at £ 567 (GBP) for United Kingdom. The figure is indicative — solar prices move with supply, duties and exchange rates, and each distributor sets its own margin — so confirm the current price with a supplier before ordering.
What are the specifications of Victron Lithium Battery 12.8V and 25.6V Smart?
We hold 4 published specifications for this battery, including system battery voltage 12V, connectivity BlueTooth, weight (kg) 15 and warranty 3. The full table is on this page, listed under model VLB-12/100BMS.
Who makes Victron Lithium Battery 12.8V and 25.6V Smart?
Victron Lithium Battery 12.8V and 25.6V Smart is a Victron Energy product, listed under batteries with model reference VLB-12/100BMS. The Victron Energy brand page lists the rest of its range so you can compare across the catalogue.
Is Victron Lithium Battery 12.8V and 25.6V Smart right for my system?
That depends on what it has to connect to. For a battery, check usable capacity after depth of discharge — LiFePO4 typically allows 80–100%, lead-acid closer to 50%, system voltage: 12 V, 24 V and 48 V for low-voltage packs, or a high-voltage stack and continuous charge and discharge current, which limits how much power you can draw from the pack against the rest of your equipment before price enters the decision. Match voltage to the inverter, and confirm the battery appears on the inverter maker's supported list. Closed-loop communication lets the inverter respect the battery's real charge limits instead of guessing.
Where can I buy Victron Lithium Battery 12.8V and 25.6V Smart in United Kingdom?
SolarBazaar lists and compares equipment rather than selling it. Use the specifications and price here to shortlist, then buy through an authorised distributor or installer in United Kingdom — buying in-channel is what keeps the manufacturer's warranty valid.
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