Which charger for 72V 100Ah LiFePO4 pack with JK BMS 150A

[adsc]

Hello, I'm looking for an alternative to the expensive Zivan NG5/7/9 chargers, if there is any. Plan is to onboard and connect the charger to a Type 2 plug, so that I can load at public charging stations.

Input should be 380V three phase or 240V single phase AC and output 88V DC with at least 25A, preferably a lot more. It is for charging a 24S LiFePO4 pack (72V 105Ah) with a JK Smart Active Balance BMS B1A24S15PR - (8S - 24S) - 150A

 

[dominik h]

Modified Huawei R4875G1 from aliexpress but not the 0-100V ones.
Up to 4kW and 95-97% efficiency.
Only the ones that still use CAN-BUS to controll the output voltage.

Or cheaper a modified Delta 0-120V 25-30A. But only 92% efficiency

Both have higher efficiency as the Zivan.
I had a NG3 and a NG7 and sold them very fast.

 

[adsc]

Sounds interesting, thanks, will look into those options. I assume Delta means the Delta-Q chargers? It seems there are also Wallboxes called Delta, but you probably didn't mean those, right?
Also, what does the modification entail?

 

[j bjork]

I dont know what you plan to have the charger "on board" on, but I dont think those psu:s like too much vibrations and to get wet.
An alternative might be these elcon chargers if you can control them:

https://endless-sphere.com/sphere/threads/elcon-3-3kw-charger.128041/

There are bigger models too, not sure if they are still one phase ar more.

 

[adsc]

Thanks, the TC chargers look interesting. They are pretty big and hefty, but that's to be expected with these performance specs. The 3.3kW models seem to be $500 for a single test example on alibaba. The larger 6.6kW models seem to be $900.

 

[dominik h]

...but I dont think those psu:s like too much vibrations and to get wet.

I think the Zivan chargers are not for use onboard.
I had the Zivan also, a lot of big parts on the pcb were not attachrd to something, I never would think about getting a Zivan onboard.

 

[Michael9dk]

I have this 72V/20A charger for my 105A LFP. It also comes with different output v/a.
It is made for onboard, waterproof, electronics are potted with silicone inside.
My limit is a 13A mains fuse. It's easy to add 2 more and run on a 3-phase charging station.

aliexpress.com/item/1005006807437568.html