Light in weight:
LiFePO4 substitution battery is only approx. 1/3 of lead acid battery in weight;
Environmentally friendly:
LiFePO4 does not contain any harmful heavy metal elements, pollution-free both in production and actual use.
Long Cycle Life:
This battery is with over 2000 time charge and discharge cycle life, after that, capacity left is still 80% of original value, self discharge rate is much lower than li-ion battery and lead-acid battery;
Customized &Save Time:
Battery cells, size, capacity, voltage, connector…most parameters can be changed according to your request. You don’t need to take too much time to search an exist model
Application
1)Energy Storage: PV Energy Storage, UPS, backup, power station;
2)EV: Golf trolleys, Electric scooters;
3)Solar System: Solar Home System, Solar Street Light, Solar CCTV
4)Telecommunications Base Stations;
5)Others: Emergency Light, Miner’s lamp, portable power supply, digital products, Robotics，AGV/RGV/AMR, etc.
Features:
- Maintenance-free operation;
- The long service life of 10~15 years;
- Inbuilt BMS multiple security protection;
- High-quality lithium iron phosphate batteries, safe and reliable;
- More rechargeable time, longer lifetime, economic and environmental protection.
Specification:
| 51.2V 150Ah Lithium LiFePo4 Deep Cycle Rechargeable Battery Replace the Lead Acid Battery | |||
| Electric Characteristics | |||
| Battery Type | LiFePo4 | Nominal Capacity | 150Ah |
| Nominal Voltage | 48V | Actual Voltage | 51.2V |
| Energy | 7680Wh | Cycle Life | 6000+ |
| Charging and Discharging Parameters | |||
| Full charge volt | 58.4V | Discharge cut-off volt | ≤40V |
| Max charge current | 75A | Max continuous discharge current | 150A |
| Peak discharge current | 300A@1~3 Seconds | Suggested charge Volt | 58.4V |
| Operation Temperature Parameters | |||
| Charge | 0~45℃ | Storage less than 12 months | -20 ~25℃ |
| Discharge | -20~60℃ | Storage less than three months | -20~35℃ |
| Recommended | 18~28℃ | Storage over 12 months | 25 ℃ |
| Mechanical Properties | |||
| Dimension Length | 483mm | Housing materials | ABS/PVC/Customized |
| Dimension Width | 170mm | Terminal size | M6/M8 optional |
| Dimension Height | 240mm | Waterproof level | IP65 |
| Weight | About 65kg | Configuration | 16S3P/ 16S2P |
| BMS function | |||
| Protect battery from Overcharge, Over-discharge, Over-current, Short circuit | |||
| Advantage | |||
| High safety (no fire, no explosion) | No memory effect | High energy density | Long lifespan |
| Fast Charge Capability | Waterproof | Individual cell balancing | Easy maintenance |
Why choose OSM？
- 10 years longer warranty time
- OEM/ODM custom is acceptable without MOQ Request
- Made of industrial Grade original OSM factory lifepo4 battery cell with Factory price
- With advanced smart BMS (Battery Management System)
Packing & Delivery:
Packaging:
1) Carton box -pallet-container.
2) Packaging also can be customized by customers’ requirements.
Shipping:
1) Shipping time for news sample is 25-30 working days; mass production is 15~20 working days – since deposit received and samples confirmed.
2) Sample order is supposed to be shipped by DHL, UPS, FedEx, or TNT, mass order is suggested to ship by sea, we could supply forwarder service if you need.
Our Services:
OEM & ODM can customize according to your request :
- Battery voltage, capacity, and dimension.
- BMS charging and discharging current.
- Connector, case, and wire.
- Your own logo eg: silk print.
After-sales service is available :
- Respond in 24 hours to any inquiry on our product.
- Take action quickly for a normal customers’ claim within 12 hours.
- Good after-sales service: We offer 10 years quality warranty for lifepo4 batteries 12.8V 20Ah/50Ah/100Ah/200Ah/500Ah/1000Ah/…
- One by one tested before shipment.
FAQ:
1: Is OSM Battery a trading company or factory?
R: OSM is a company with its own factory, which integrates research, development, production, and sales.
2:How about is the quality of OSM’s LiFePo4 Battery product?
R: OSM has 12+ years of experience in lifepo4 battery, is also the authorized supplier of Siemens and BOSCH.
3: Can you do OEM/ODM project?
R: Yes, we have engineers who can help you design and R&D any related products.
4: What’s your MOQ?
R: According to your battery voltage and capacity.
5: What payment terms we can accept?
R: TT/Paypal/West Union/etc.
Remark: Our products are customized, so the main data can be changed by customer’s requirements.
51.2V 150Ah: capacity, energy and configuration
The name gives both numbers. At 51.2 V nominal and 150 Ah, the battery stores 7.68 kWh. Mechanically it is 16 LiFePO4 cells in series (16 × 3.2 V = 51.2 V); the 150 Ah rating comes from the parallel configuration of the prismatic cells. That makes it a drop-in voltage match for any 48 V-class inverter, which is the point of the format.
| Parameter | Typical value |
|---|---|
| Nominal voltage | 51.2 V (16S LiFePO4) |
| Nominal capacity | 150 Ah |
| Energy | 7.68 kWh |
| Usable energy (80 % DoD) | About 6.1 kWh |
| Cycle life | 2,000–6,000 cycles to 80 %, depending on DoD |
| Communication | RS485 / CAN for closed-loop inverters |
Replacing a lead-acid bank with 51.2V 150Ah LiFePO4
The comparison is not like for like on the label, because lead-acid should not be discharged below half its capacity while LiFePO4 runs happily to 80 %; 150 Ah of lead-acid realistically delivers about 75 Ah, so this battery replaces roughly a 300 Ah lead-acid bank while weighing about a third as much. The chemistry-level arithmetic is set out in lithium-ion vs lead-acid batteries. The practical requirements are to reprogram the charger for a lithium profile and to disable any lead-acid equalisation stage.
Where a 51.2V 150Ah battery is used
- Telecom base stations — the 48 V bus is the standard in telecom and this capacity fits a single cabinet.
- Home solar storage — 6.1 kWh usable covers the evening peak of a typical home.
- UPS and backup — no maintenance, unlike the flooded batteries a cabinet of this size would otherwise need.
- Solar street lighting and remote sites — long cycle life with minimal servicing.
A parallel module already scaled for the same bus is the 48 V powerwall range, and stacking units is the usual way to reach 10 kWh and above.
Installation notes
- Confirm the inverter is set to a 16S LiFePO4 charge profile (58.4 V full charge).
- Do not mix this battery with lead-acid in the same bank — the chemistries require different voltages.
- Allow air space around the enclosure; LiFePO4 dislikes heat even though it is tolerant of abuse.
- If paralleling units, match capacity and state of charge before connecting.
51.2V 150Ah battery FAQs
How many kWh is a 51.2V 150Ah battery?
7.68 kWh nominal (51.2 V × 150 Ah), of which about 6.1 kWh is usable at 80 % depth of discharge.
What replaces a 300Ah lead-acid bank?
A 150 Ah LiFePO4 battery of the same nominal voltage, because lithium can be cycled to 80 % DoD against about 50 % for lead-acid.
Can I use this battery with a 48V inverter?
Yes. 51.2 V nominal is the “48 V class” voltage that 48 V inverters expect; the charger must be set to the LiFePO4 profile.
Need a quote? Tell us your voltage, capacity and application and we will confirm the right 48 V-class LiFePO4 battery — factory-direct, no obligation.
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