48V 28.8Ah LiFePO4 UPS Battery
(2.5kVA Long Backup Module)
The product page lists a 48V nominal, 28.8Ah, 1382.4Wh LiFePO4 pack for UPS applications up to 2.5kVA. Treat the listed 30-minute runtime as a reference only; confirm the DC bus, charger, load profile, cut-off settings and operating conditions for the selected system. The page also lists external parallel expansion, which must be verified for the actual battery and BMS configuration.
External Battery (Long Backup Power)
The product page lists this pack for UPS systems up to 2.5kVA. Confirm the UPS DC bus and charging profile, load requirements and BMS limits before selection; the kVA class alone does not establish compatibility.
- Runtime reference: the page lists up to 30 minutes. Actual backup time varies with load, UPS conversion efficiency, cut-off settings and operating conditions.
- Parallel connection: the page lists 15S8P in the cell-string specification and separately claims up to eight packs in parallel. Confirm the intended external topology and BMS coordination with the supplier before building a battery bank.
- Integrated BMS: the page lists overcharge, over-discharge, over-temperature, over-current and short-circuit protections. Verify the thresholds and functions for the quoted variant.
- Mechanical fit: two page sections list 415 × 438 × 88.5 mm and 415 × 438 × 88 mm. Confirm the controlled dimensions for the quoted version before rack installation.
This 48V LiFePO4 UPS battery is designed for 2.5kVA UPS systems and is suitable for data rooms, office IT infrastructure, telecom equipment, security systems, and industrial control applications requiring stable and safe backup power.
Mechanical Dimensions (L×W×H): 415 × 438 × 88.5 mm
| Electrical Specifications | |
|---|---|
| Nominal Voltage | 48V |
| Nominal Capacity | 28.8Ah |
| Power | 1382.4Wh |
| Internal Resistance | ≤ 150 mΩ |
| Self-discharge | < 1% per month |
| Cell string configuration | 15S8P (as listed); external bank topology requires confirmation |
| UPS Compatible | ≤ 2.5KVA |
| Discharge Specifications | |
|---|---|
| Backup time listed (reference) | Up to 30 minutes; depends on load and system conditions |
| Maximum Continuous Discharge Current | 58A |
| Over-discharge Protection Voltage | 39V |
| Over-discharge Recovery Voltage | 40.5V |
| Short Circuit Protection | Yes |
| Communication & Compliance | |
|---|---|
| Communication | RS232/RS485 |
| Certification | UN 38.3/UL1973 |
| Mechanical Specifications | |
|---|---|
| Cell | IFR26650-3600mAh |
| Battery String Count | 15S8P |
| Dimensions (L×W×H) | 415 × 438 × 88 mm |
| Weight | 19.5 Kg |
| Output Terminal | Anderson SB50 |
| Enclosure Material | SPCC |
| IP Rating | IP21 |
| Charging Specifications | |
|---|---|
| Charging Current | 14.4A |
| Charging Voltage | 54V |
| Overcharge Protection Voltage | 54V |
| Overcharge Recovery Voltage | 51.75V |
| Balance Activation Voltage | 51.75V |
| Temperature Specifications | |
|---|---|
| Discharge Temperature | -20 to 60°C |
| Charging Temperature | 0 to 45°C |
| Storage Temperature | -5 to 45°C |
| BMS Over-Temperature Protection | 65 ± 5°C |
| BMS Over-Temperature Protection Recovery | 55 ± 5°C |
UPS battery selection & project planning
48V 28.8Ah LiFePO4 UPS battery with a 30-minute runtime reference
This 48V, 28.8Ah listing provides 1,382.4Wh and is presented for UPS systems up to 2.5kVA, with 58A maximum continuous discharge and up to 30 minutes as a runtime reference. Its larger energy listing distinguishes it from the 48V 12Ah page, but runtime and external-bank topology require system confirmation.
UPS compatibility and replacement checks
How to interpret this configuration
Use the 2.5kVA label only as a selection starting point. The page lists 15S8P, RS232/RS485 and an Anderson SB50 output; separately verify what 15S8P describes, the permitted external parallel topology, charger limits and BMS coordination for the specific UPS.
Typical system context: This higher-capacity 48V listing is relevant when the project needs more listed battery energy than the 48V 12Ah page and the installation can accommodate the published enclosure. It may suit longer-hold-up requirements for compatible enterprise IT, edge/server rooms and control systems; the actual load curve must be reviewed before sizing.
Interface and installation details to confirm
- Published dimensions are shown as 415 × 438 × 88 mm in one area and 415 × 438 × 88.5 mm in another; confirm the exact enclosure revision.
- The page lists a maximum continuous discharge current of 58A and a 39V protection / 40.5V recovery pair.
- Confirm RS232/RS485 protocol and pinout; availability of a communication interface does not itself establish compatibility with the UPS software.
LiFePO4 retrofit checklist
- Confirm a 48V-compatible UPS bus and LiFePO4 charger/cutoff window.
- Check the load against the listed 58A continuous limit and identify any startup/pulse demand.
- Resolve the 88 mm versus 88.5 mm height before rack-clearance approval.
- Verify whether external parallel expansion is permitted for this exact battery/BMS and UPS combination.
Runtime planning and OEM/ODM project intake
Plan from the actual UPS load
Up to 30 minutes is the listing’s reference, not a guaranteed duration at 2.5kVA or at full output. Actual runtime depends on connected kW load, UPS efficiency, discharge cutoff, state of charge, temperature, battery age and configuration. For runtime planning, send load watts, UPS model, required hold-up time and cutoff settings.
What to include in a quotation request
Provide UPS model/DC bus, actual load in watts, runtime target, cutoff, current demand, connector/polarity, mounting clearance, desired pack count and communication requirements.
Project customization discussions can include bank topology, BMS interface, wiring, connector, enclosure/retention and label configuration. The listed 15S8P cell string should not be interpreted as permission for eight external packs in parallel; get the pack-level schematic or configuration confirmed for the quote.
Discuss this UPS configurationCompare related UPS configurations: Compare the 48V 12Ah 4kVA-class high-current option · Compare the 76.8V 9Ah 2U rack-format option · View the UPS battery range
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