Description
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>7000 Cycles at 80% depth of discharge
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Power key (for BMS On/Off)
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Create 48 Volt Storage Systems
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Connect in parallel, up to 16 for 81,920 Watts
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Automatic system cell balancing
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All parameters available on LCD display
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Temperature monitoring (high and low cut-off), 6 temperature sensors
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Exceptional voltage stability
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Maintenance-free
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No hydrogen generation or gassing
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<70% the weight of similarly sized SLA batteries
JAKIPER BMS SOFTWARE V2.5.2 -4U(7.01MB)
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.
Uploaded image(s):
Anonymous (verified owner) –
Anonymous (verified owner) –
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”