Description
29.2V LiFePO4 Battery: overview
The OSM 29.2V LiFePO4 Battery is a 25.6V rated LiFePO4 battery. It is engineered for solar storage, backup power and off-grid systems.
LiFePO4 (lithium iron phosphate) chemistry is the reference choice for this duty because it is thermally stable, keeps a flat voltage curve across most of the discharge, and tolerates daily deep cycling without the capacity walk-down that lead-acid suffers. The pack is assembled around Grade A cells and managed by a battery management system that enforces the published voltage, current and temperature limits from the factory.
Key features
29.2V LiFePO4 Battery
- Cycle life: 2000+ cycles at the published test conditions
- LiFePO4 chemistry for thermal stability and a flat discharge curve
- 200A ，Charging Overvoltage Protection: 29.2V ，Discharging Undervoltage Protection: 20~24.5V ，High-Temperature Operating Protection: 70℃ ，Short-Circuit Protection: 1800A ，Cell Balancing Method: Active Balancing protection on the enclosure
- Integrated BMS guarding over-charge, over-discharge, over-current and temperature
Specifications
Electrical
Mechanical and environmental
| Weight | 50kg |
| Protection rating | 200A ，Charging Overvoltage Protection: 29.2V ，Discharging Undervoltage Protection: 20~24.5V ，High-Temperature Operating Protection: 70℃ ，Short-Circuit Protection: 1800A ，Cell Balancing Method: Active Balancing |
| Storage temperature | 0℃~40℃ |
Control, compliance and commercial
| OSM model | 25.6V280AH |
| BMS protection | Over-charge, over-discharge, over-current, short circuit, over-temperature |
Applications
| Application | Typical configuration | Why it fits |
|---|
| Solar self-consumption | PV array + hybrid inverter | Stores surplus daytime generation |
| Backup power | Critical-load panel | Bridges grid outages automatically |
| Off-grid systems | Scaled to daily consumption | Deep daily cycling without damage |
| Time-of-use arbitrage | Off-peak charging window | Shifts cheap energy to peak hours |
| Lead-acid replacement | Same nominal voltage | Lighter, longer lasting and maintenance-free |
- Solar energy storage
- Backup power and UPS
- Off-grid and hybrid solar systems
- RV, marine and camper van house banks
- Lead-acid replacement in 12 V and 24 V systems
29.2V LiFePO4 Battery — installed configuration example
Sizing this LiFePO4 battery for your project
Sizing. Tell us the load profile, the backup hours you need and the inverter you are using, and the OSM engineering team will confirm the voltage, capacity and parallel configuration for your project.
Why buy from OSM
- Grade A LiFePO4 cells with an integrated BMS
- About one third the weight of an equivalent lead-acid battery
- Long cycle life with no maintenance and no gassing
- Factory-direct pricing with OEM/ODM branding
OSM Battery manufactures and exports LiFePO4 batteries and energy storage systems for distributors, installers and project developers. Every order is built to the published specification, tested before dispatch, and shipped with the documentation your market needs.
29.2V LiFePO4 Battery — application example
OEM and ODM customization
Beyond the standard configuration, OSM builds to order: enclosure colour and branding, nameplate and label artwork, packaging, cable and connector sets, communication protocol selection and matched charger or inverter bundles. Send the target specification and the artwork, and the engineering team returns a drawing and a quotation.
Frequently asked questions
How long does this LiFePO4 battery last?
The published cycle life is 2000+ cycles. At one full cycle per day that is well over ten years of service, and the usable life is normally limited by the depth of discharge and the operating temperature rather than by the cells themselves. Keep the pack inside its published temperature window and let the BMS manage the charge profile.
What chemistry does this LiFePO4 battery use?
It uses lithium iron phosphate (LiFePO4 / LFP) cells with a nominal rating of 25.6V. LFP is chosen for this duty because it is thermally stable, holds a flat voltage curve for most of the discharge and tolerates daily deep cycling far better than lead-acid or NMC.
Can it be integrated with a third-party inverter?
Yes. Tell us the inverter model and we will confirm the communication protocol and the charge profile settings before you order, so the battery and the inverter agree on voltage limits and current limits from day one.
Can I expand the bank later?
Yes. Units of the same voltage and capacity class can be added later, which is why it pays to leave headroom in the inverter charge current and in the rack, cabinet or wall space. If you expect to grow, plan the final bank size now and build it in stages.
Do you supply samples and OEM branding?
Yes. OSM supplies single units and samples, and offers OEM/ODM on the enclosure, the label, the nameplate and the packaging. Send the artwork and the target specification and we will return a quotation with the lead time.
How is it shipped and what documents come with it?
Shipments go out as Class 9 dangerous goods with the UN38.3 test summary, the MSDS and the transport documents, packed for sea or air freight. Bulk orders can be consolidated so the container is loaded to suit your warehouse.
Request a quotation
Tell us the voltage, the capacity or the kWh you need, the inverter you are using and the quantity — the OSM team will come back with a price, the datasheet, the MOQ and the lead time. Samples and OEM trials are available.
Contact OSM Battery for wholesale pricing, OEM/ODM and project support.
