BYD Battery-Box Premium LVS
A modular low-voltage LFP battery of 1 to 6 modules (4 to 24 kWh usable) for use with an external inverter, with IP55 protection and a 10-year warranty.
- Best for modular low-voltage
- Installed battery
- 4-24 kWh
- 10-year warranty
- Made by BYD.
- Energy: 4 to 24 kWh usable, built from 1 to 6 modules of 4 kWh at 100% depth of discharge.
- A low-voltage battery only (51.2 V): it connects to a compatible inverter and BYD refers to a separate compatibility list.
- Up to 64 modules in parallel (256 kWh); round-trip efficiency of 95% or more.
- IP55, indoor or outdoor, floor stand. The numbers on this page are for one module (LVS 4.0), unless stated.
Not tested by us
We have not tested the BYD Battery-Box Premium LVS. The figures on this page come from the sources listed at the end of the page, checked on 10 November 2026, and we do not show prices. "Best for" is based on what the maker says the product is designed for, not on our own tests.
Key figures
4-24 kWh
Usable energy (1 to 6 modules)
95%+
Round-trip efficiency
10 years
Warranty
Specifications
Last checked on 10 November 2026. The grey text under each name explains what the value means.
| Specification | Value |
|---|---|
| Storage | |
| CapacityHow much energy the battery stores. Bigger means longer runtime or more of your own solar power used later. | Rated energy not listed; usable energy 4 kWh per module (LVS 4.0 to LVS 24.0 for 1 to 6 modules) |
| Usable capacityThe part of the stored energy you can actually use. It is lower than the nominal capacity. | 4 to 24 kWh, measured at 100% depth of discharge, 0.2C, 25 °C; usable energy may vary with the inverter brand |
| Depth of dischargeHow much of the battery can be emptied without harming it. 90% means 10% is kept in reserve. | 100% (test condition for the usable energy) |
| Battery chemistryLFP (lithium iron phosphate) cells are known for long life and stable behaviour with heat. | Lithium iron phosphate (LiFePO4) |
| Cycle lifeHow many full charge and discharge cycles the cells are rated for before they hold less than the stated share of their original capacity. | Not stated as a cycle number; the warranty uses a throughput limit (LVS 4.0: 11.88 MWh) |
| ExpansionExtra battery units that add storage to the same system. | Up to 64 modules in parallel (256 kWh). Parallel towers work only with 1 to 4 modules per tower; LVS 20.0 and 24.0 can only be a single tower |
| Power | |
| Charge and discharge powerHow fast the battery can take in and give out energy. It sets how many devices it can serve at once. | Maximum continuous current 65 A (1 module), 130 A (2), 195 A (3) and 250 A (4 to 6 modules); peak 90 A to 360 A for 5 seconds; charge derating between -10 °C and +5 °C. BYD gives amps: about 3.3 kW continuous on one module at 51.2 V nominal |
| Round-trip efficiencyThe share of the energy you put in that comes back out. The rest is lost as heat. | 95% or more |
| Backup in a power cutWhether it can keep selected circuits running during a grid outage. | Listed for on-grid, on-grid with backup and off-grid use; the backup function itself comes from the inverter |
| Solar | |
| Solar inverterTurns the DC power from solar panels into AC for the home. Built in means no separate solar inverter is needed. | None: this is the battery only. BYD says it works with leading single- and three-phase inverters and refers to a compatibility list |
| Connection and housing | |
| Grid connectionThe supply type it is built for. Check it matches your home's supply. | Not applicable: the battery connects to an inverter (51.2 V nominal, 40-57.6 V operating range, low-voltage DC) |
| Dimensions (H × W × D)Check the wall or floor space before you buy, including room for airflow and cables. | LVS 4.0 (1 module): 528 × 650 × 298 mm. Taller stacks: 761 mm (2 modules), 994 mm (3), 1,227 mm (4), 1,460 mm (5), 1,693 mm (6); width and depth stay the same |
| WeightMatters for lifting, wall mounting and moving it. | LVS 4.0: 64 kg; 109 kg (2 modules), 154 kg (3), 199 kg (4), 244 kg (5), 289 kg (6). One module weighs 45 kg |
| Protection ratingIP ratings show protection from dust and water. IP55 and IP65 are rated for outdoor-style exposure; check the installation guidance. | IP55, indoor or outdoor; floor stand |
| Operating temperatureThe range it is rated to work in. Cold and heat can reduce performance. | -10 to +50 °C |
| ConnectivityHow you monitor and control it, usually through an app. | CAN |
| CertificationsSafety and grid standards the maker says the product meets. | VDE 2510-50, IEC 62619, CE, CEC, UN 38.3 |
| Warranty | |
| WarrantyThe period the maker covers. Read the terms: conditions and capacity guarantees differ. | 10 years; conditions apply. The Europe residential warranty letter adds a performance warranty: 60% of usable energy after 10 years or the minimum throughput energy, whichever comes first (LVS 4.0: 11.88 MWh, LVS 24.0: 71.29 MWh) |
Compatible with
What BYD says this product works with. Anything not listed here is not confirmed.
- Inverters
- BYD says the battery is compatible with leading single- and three-phase inverters and refers to a compatibility list. That list is not in the datasheet.
- Expansion
- Add modules to a tower (up to 6) or add parallel towers; up to 64 modules (256 kWh) in total.
- Mounting
- Floor stand only.
Rules where you live
An installed battery normally needs a qualified electrician, and in many countries you must also tell your grid operator, especially if it can export. This is not a plug-in battery. Rules, incentives and tax treatment differ by country: see our country guides for what applies where you live.
Strengths and things to check
Strengths
- Modular: 4 to 24 kWh in one tower, up to 256 kWh in parallel
- Round-trip efficiency of 95% or more
- IP55, indoor or outdoor
- 10-year warranty with a stated performance guarantee
- Up to 250 A continuous current with 4 or more modules
Worth checking before you buy
- A battery only: you need a compatible low-voltage inverter
- Heavy: 64 kg for one module stack, 289 kg for six
- No cycle rating; the warranty is based on throughput
- The compatibility list is not in the datasheet
Change log
We record changes to this page here, so you can see when figures such as the warranty were last updated.
- 10 November 2026
- Page published. Warranty at publication: 10 years, with a performance warranty (60% of usable energy or the minimum throughput energy). Figures are from BYD's LVS datasheet V1.0 (June 2024). This page does not cover the LVS Lite, LV Flex or LVL ranges.
Where this information comes from
We have not tested this battery. Every figure above comes from BYD's Battery-Box Premium LVS datasheet (V1.0, June 2024), BYD's residential limited warranty letter for Europe and the Battery-Box website, last checked on 10 November 2026. Dimensions and weight are for the smallest configuration (LVS 4.0, one module) unless stated. A value that the sources do not state is shown as not stated.
We do not show prices, because they depend on the installer's quote.
- Manufacturer BYD Battery-Box Premium LVS datasheet (V1.0, June 2024)
- Manufacturer BYD Battery-Box Premium LVS limited warranty, residential, Europe (EN)
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Common questions about BYD Battery-Box Premium LVS
How much does the BYD Battery-Box Premium LVS store?
BYD lists 4 kWh usable per module, so 4 to 24 kWh for a tower of 1 to 6 modules. Up to 64 modules can run in parallel for 256 kWh.
Does it include an inverter?
No. It is a low-voltage battery only (51.2 V). BYD says it works with leading single- and three-phase inverters; ask your installer to check the compatibility list for your inverter.
How long is the warranty?
BYD states 10 years, with conditions. Its Europe residential warranty letter also guarantees 60% of usable energy after 10 years or the minimum throughput energy, whichever comes first.
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