In stock
(20 customer reviews)

51.2V 100Ah Server Rack LiFePO4 Battery JK48V100PRO


1. Communicate with [Growatt]/[Luxpower]/[MPP Solar]/Deye Inverters, and Many Others

2. Size:442*460*177mm | Weight:45kgs

3. Capability 100A Max Charge Current | 110A Max Discharge Current

SKU: JK48V100PRO Category:


  • >7000 Cycles at 80% depth of discharge

  • Power key (for BMS On/Off)

  • Create 48 Volt Storage Systems

  • Connect in parallel, up to 16 for 81,920 Watts

  • Automatic system cell balancing

  • All parameters available on LCD display

  • Temperature monitoring (high and low cut-off), 6 temperature sensors

  • Exceptional voltage stability

  • Maintenance-free

  • No hydrogen generation or gassing

  • <70% the weight of similarly sized SLA batteries

Additional information

Weight 107 lbs
Dimensions 22 × 21 × 13 in


Nominal Voltage Nominal Voltage

51.2 V

Nominal Capacity Nominal Capacity

100 Ah

Dimension (LxWxH) Dimension (LxWxH)

17.4 x 18.1 x 7.0″ (442x460x221mm)

Approx. Weight Approx. Weight

99 lbs ( 45 Kg )

Capacity @ 20A Capacity @ 20A

300 min

Energy Energy

5120 Wh

Resistance Resistance

< 50mΩ

Self Discharge Self Discharge

< 3%

Cells Cells

3.2V 100Ah Cells

Recommended Charge Current Recommended Charge Current

20 A

Maximum Charge Current Maximum Charge Current

100 A

Recommended Charge Voltage Recommended Charge Voltage

56 – 58.4 V

BMS Charge Cut-Off Voltage BMS Charge Cut-Off Voltage

> 59.2 V

Reconnect Voltage Reconnect Voltage

< 54 V

Balancing Voltage Balancing Voltage

(Cell > 3.4 V When Charging)

Maximum Continuous Dishcarge Current Maximum Continuous Dishcarge Current

100 A

BMS Discharge Current High Warning BMS Discharge Current High Warning

105 A

BMS Discharge Cut-Off Current 110 A (1000ms)
Low Voltage Warning 44.8 V ( 2.8 V/Cell*16)
BMS Discharge Cut-Off Voltage <40V( or Cell<2.5 V) (1 s)
Reconnect Voltage >42.5 V
Short Circuit Protection 300 μs
Terminal Type M8x4
Terminal Torque 106 ~ 132 in-lbs ( 12 ~ 15 N·m )
Case Material Steel
Recommended Connection Wire 6 AWG
Temperature Sensor Quantity 6 pcs
Discharge Temperature – 4 ~ 140 °F ( – 20 ~ 60 °C )
Charge Temperature 23 ~ 131 °F ( – 5 ~ 55 °C )
Recommended Storage Temperature 23 ~ 95 °F ( – 5 ~ 35 °C )
BMS High Temperature Cut-Off 149 °F ( 65 °C )
Reconnect Temperature 140 °F ( 60 °C )



USB-232 Driver (48.62MB)

JK48V100PRO LiFePO4 Battery Specification (442KB)



All our products come with a 10-year limited warranty.

  • Covers any defects in materials or workmanship
  • Covers LiFePO4 cells failure over 10 year
  • Covers the original purchaser only, non-transferable.

Changing any settings in the BMS will VOID the warranty.  Only the factory set parameters are warranted.

20 reviews for 51.2V 100Ah Server Rack LiFePO4 Battery JK48V100PRO

Based on 12 reviews
5 star
4 star
3 star
2 star
1 star
Showing 3 of 12 reviews (4 star). See all 12 reviews
  1. Larry Kapp (verified owner)

    The battery is okay , I only give it a 4 star rating because I did not do my own research better on it’s specifications. I should have realized from research that this model has an AC breaker instead of the more appropriate DC breaker. Jakiper told me that this is only secondary protection in that the bms will be primary. So maybe it is okay as an on off switch for main power but not appropriate for shutdown under load because of arcing that an AC breaker is not designed for. Of course it would only be in an emergency that one would shut off a breaker like that under load manually and it would shut off the load .

    I have it installed the battery and it is working okay though it is still breaking in and balancing cells. I have been watching the available monitoring software closely to see how everything behaves. It is very good software that lets you see each cell voltage and when they are in a balancing condition. I also like that the software also shows the state of charge . This corresponds almost exactly with the Midnite controller state of charge that I set up to the battery capacity. And it is nice that you can see the current of each battery if it is charging or discharging. I have three batteries so it is very useful. So good on the free monitoring software. But it will take time for the recommended 30 cycles of the battery for me to evaluate this battery in the long run. Coming from using lead acid batteries in the past, these lithiums are so nice in that you can charge them with more power at once compared to how charge would taper off on lead acid. This will be helpful in my northern climate where we have shorter days in the winter but get some good sun when the batteries can charge more quickly . All in all the build quality seems pretty good – I have had no issues so far.

    Jakiper has been responsive in answering any questions I have when I email them. Initially I had questions about shipping , but later on about some of the charging setup for my controller. It would be nice if they had written up a bit more detail of operations for their owners manual. But the manual that came with it does have the most important info and nice that it shows the pinouts for the communications jacks. Jakiper has been making update videos to explain to people how to do certain things that were not in the manual – like how to program the bms to communicate with certain inverter chargers.

    Anyway so far so good with the Jakiper batteries.

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  2. Anonymous (verified owner)

    Verified reviewVerified review - view originalExternal link

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  3. Anonymous (verified owner)

    Verified reviewVerified review - view originalExternal link

    Covers are needed for the unused connections. The older model had a plastic cover to protect the connection from inadvertent contact.
    All other aspects of the Battery are a “5”

    (2) (0)
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