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5kwh All in One 51.2V 48V 100Ah Lifepo4 Battery Energy Storage System

  • BFB-48100AHB
  • Benergy

5kwh All in One  51.2V 48V 100Ah  Lifepo4 Battery Energy Storage System

Benergy FB-51100AH 5KW battery system is a kind of new hybrid photovoltaic energy system that combines solar energy storage, city charge, and AC sine wave output into one system. It adopts the DSP control technology. Through advanced control algorithm, it has the characteristics of high response speed, high reliability and high industrialization standard. There are 4 charge modes available: solar power only, city power priority, solar power priority and mains solar power; Inverter and mains power can be selected to meet different application requirements.


City Power Mode City Power charge
Rated input voltage 220/230Vac Max charge current (Adjustable) 60A
Input voltage rage

(170Vac~280Vac) ±2%


Charging current error ± 5Adc
Frequency 50Hz/ 60Hz (Automatic detecting) Charging voltage range 40 – 58Vdc
Frequency range

47±0.3Hz ~ 55±0.3Hz (50Hz);

57±0.3Hz ~ 65±0.3Hz (60Hz);

Short circuit protection Circuit breaker and fuse
Overload/short circuit protection Circuit breaker Circuit breaker specification 40A
Efficiency >95% Overcharge protection Alarm and turn off charging after 1 minute
Conversion time (bypass and inverter) 10ms (Typical) Maximum charging current (settable) 60A
AC back irrigation protection yes

Maximum bypass overload current 40A

Inverter mode Solar power charge
Output voltage waveform Pure sine wave Maximum PV open circuit voltage 145Vdc
Rated output power 5000 (VA) PV Operating voltage range 60-145Vdc
Power factor 1 MPPT voltage range 60-115Vdc
Rated output voltage 230Vac Battery voltage range 40-60Vdc
Output voltage error ±5% Maximum input power 4400W
Output frequency range

50Hz ± 0.3Hz

60Hz ± 0.3Hz

Solar charging current range (settable) 0-80A
Efficiency >92% Charging short-circuit protection Blow Fuse
Over load protection

(102%<load<125%) ± 10%: Error is reported and output is closed after 5 minutes; (125%<load<150%) ± 10%: Error is reported and output is closed after 10 seconds;

load>150% ±10%: Error is reported and the output is closed after 5 seconds;

Wiring protection Reverse connection protection
Peak power 10000VA Maximum hybrid charging current ( PV+AC)
On load motor capacity 4HP Maximum hybrid charging current (settable) 0-140A
Output short-circuit protection Circuit breaker Other specification
Specification of bypass circuit breaker 40A Operating temperature range -15°C to 55°C
Rated battery input voltage 48V ( Minimum starting voltage 44V) Storage temperature range -25°C ~ 60°C
Battery capacity 5120Wh Humidity range 5% to 95% ( Three proofing paint protection)
Battery voltage range 40.0Vdc~60Vdc ± 0.6Vdc ( Under voltage alarm / Shutdown voltage / Overvoltage alarm / Overvoltage recovery …LCD screen can set data) Noise ≤60dB
Power saving mode Load≤50W Communication interface USB/RS485(WiFi/GPRS)/DRY contact port

Product characteristic

  1. Adopt full digital voltage and current double closed loop control, advanced SPWM technology, and output pure sine wave

  2. It has two output modes of AC bypass and inverter output, and has the function of uninterrupted power supply.

  3. There are 4 modes selectable: Solar power only, city power priority, solar power priority and hybrid charge.

  4. LCD screen indication, dynamic display of system and operation status.

  5. Has power saving mode to reduce no-load loss.

  6. Intelligent adjustable speed fan is used to dissipate heat efficiently and prolong the service lifepo4 of the system.

  7. Has multiple protection functions and 360 ° all-round protection.

  8. Has complete short circuit protection, overvoltage and undervoltage protection, overload protection, reverse irrigation protection, etc.



1 LCD Screen
8 RS485 communication port
2 Indication light
9 USB port
3 Light touch button
10 DC12V output
4 On/off switch
11 USB output
5 SOC indicator
12 AC output
6 AC input/output,PV input
13 Circuit breaker
7 DRY contact terminal



Benergy 48V lithium Iron Phoshpate battery packs can be widely used for solar system,e-scooter, e-bike, lawn mower, UPS etc.


Advantage of LiFePO4

Lithium iron phosphate batteries (LiFePO4 or LFP) offer lots of benefits compared to lead-acid batteries and other lithium batteries. Longer life span, no maintenance, extremely safe, lightweight, improved discharge and charge efficiency, just to name a few. LiFePO4 batteries are not the cheapest in the market, but due to a long life span and zero maintenance,which means that you don't need to replace in a long time,you can enjoy the convenience, it’s the best investment you can make over time.

Why choose Benergy 48V Lifepo4 battery pack?

The Benergy 48V 60Ah is a Lithium Iron Phosphate battery (LiFePO4) with a rated capacity of 60Ah. The unique combination of state-of-the art technology and smart software makes this lithium battery a robust, safe and easy to use energy storage solution. Compared to conventional lead-acid batteries, the Benergy 48V 60Ah lithium battery offers an enormous weight and space saving. It is very efficient, has extremely high performances and is maintenance free.


Q1: Can I get free sample?
A1: Generally we don't provide free sample, but we can return sample cost when the buyer plant a bulk order.

Q2: How should I pay?
A2: You can pay via T/T, PayPal, Western Union, Cash etc., 100% T/T in advance for samples. For large quantities, 30% T/T in advance as soon as order confirmed and the balance before shipping via T/T or L/C etc. If you prefer other payment terms, please contact us freely.

Q3: What is delivery time if we place an order?
A3: It depends order quantities. Usually, we can deliver goods within 10 -15 working days for small orders, for more QTY. order, let's confirm when you place offical order.

Q4: Are your factory or trading company?
A4: We are proffesional Lifepo4 cells and packs manufacturer with our own factory and brand BENERGY. We provide all kinds of OEM/ODM services for clients around globe.

Q5. What is your warranty?
A5:We offer 2 -5 years warranty for all our battery pack.we ensure at least 3000 cycle life for the LiFePO4 battery pack, which means,after 3000@80% DOD,there will still around 80% capacityt left.You can use it for at least 5 years for normal 1 time charge and discharge everyday.

Q6. Can we put 48V LiFePO4 battery pack in parallel or series by ourself?
A6:Yes. The battery can be put in parallel by customers. But there are few tips we need to pay attention:
1> Make sure the voltage of each battery are same before put inparallel. If they are not same, charge them to the same rate;
2> Do not put discharged battery and undischarged battery in parallel. This may reduce the capacity of the whole battery pack;
3> Do not put the 12V batteries in series.
4> If you are not professional in parallel batteries, please don't handle the battery by yourself. It may cause danger and hurt the cycle life of battery;

5> If you want to make a higher capacity battery pack, like 48V 200Ah, please order 48V 200AH directly. The cost for one 48V 200AH is lower than two 48V 100AH pack. To charge or discharge one 48V 200Ah directly is better than to charge or discharge two 48V 100AH packs, cycle life longer, safer.

Benergy Tech Co. Ltd is a battery manufacturer which specializes in producing advanced Lithium Iron Phosphate (Lifepo4) batteries and Lifepo4 battery packs since 2009.




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