BYD Battery-Box LV Flex Lite
Low-voltage LFP battery · Start at 5 kWh and add modules
BYD Battery-Box
Start small and expand as you need
A 3U battery module from BYD that works with leading 1-phase and 3-phase inverters for on-grid, on-grid with backup, and off-grid systems.
- LFP cells developed by BYDCobalt-free technology proven in millions of EVs.
- Expand to 64 modulesGrow from 5 kWh up to 320 kWh.
- Works with leading invertersSupports 1-phase and 3-phase models on BYD's approved list.
Recommended model
LV Flex Lite 5.0 kWh
A 51.2 V low-voltage module for use with or without a rack, with more modules addable later.
- 5.0 kWh
- Usable capacity
- 51.2 V
- Nominal voltage
- 64 modules
- Max in parallel
- 10 Years
- Warranty
The EV Power Energy team surveys your site and recommends a system size before installation.
Technical data
Manufacturer specifications
| Model | BYD Battery-Box LV Flex Lite |
| Usable capacity | 5.0 kWh |
| Battery type | Lithium iron phosphate, cobalt-free |
| Nominal / operating voltage | 51.2 V / 43.2–57.6 V |
| Output current | 70 A continuous · 105 A peak for 5 s |
| Parallel connection | Up to 64 modules, 320 kWh total |
| Usage type | On-grid · On-grid with backup · Off-grid |
| Installation | With or without a rack |
| Dimensions (H × W × D) | 132 × 482 × 521 mm |
| Weight | 47 kg |
| Protection rating | IP20, for indoor installation |
| Operating temperature | -10 to +50°C |
| Warranty | 10 Years |
* Requires a BYD-approved inverter. System usable capacity can vary by inverter brand. Models and specifications sold may vary by region. Please check with our team before ordering.
Installation
Get started in 3 easy steps
Installed by the EV Power Energy team
Fill in the form or contact us via LINE, Facebook or phone to book a free site survey
We check your electrical system, installation space and usage to choose the right model and capacity
We install and configure the system, then show you how to look after it.
Frequently asked questions
Does it need an inverter?
Yes. LV Flex Lite is a battery only and must connect to a BYD-approved inverter. Our team will check the model before installation.
Can capacity be added later?
Yes. Up to 64 modules can run in parallel for 320 kWh.
Can it be installed outdoors?
Not recommended. The battery is rated IP20 and suits indoor installation.
How long is the warranty?
The battery has a 10-year warranty per the manufacturer's datasheet. The optional pre-wired cabinet has 3 years.
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