Bonjour and hello.

[SteGadd]

Hello Steve, if you allow me I put your text in "good" French for I hope a good understanding

Hello Steve, if you allow me I'll put your text in "good" French for I hope a good understanding

I bought 15 PYlontech US2000 and H48050 batteries with spare or repair parts.

I don't have an inverter and I want to try to make functional units from the parts I have.

First of all, I try to charge the batteries to see if they are in good condition.

No one seems to have considered the possibility of charging the 3 battery cells individually.

I also can't find any information about making an inverter or creating a custom charger or alternative inverter.

I hope someone here will have ideas or point me in the right direction.

Thank you

I have a few questions right away.

1) Have you checked the voltage of each of your units. This is to get an idea of their basic state. If you are empty around 49 V it is not very good.
2) Were you able to get them started? Are they going on alarm? Do the LEDs light up?
3) If it turns on (without any charge on it), can you try to talk to them via the console port? this to see what they say with the different possible commands (help function to see the commands. Or switch to debug mode)
4) For the charger, it is that 50 V is not common. Tomorrow I give you more info or ideas for that.
5) Is it for private use?

I have a few questions right away.

1) Have you checked the voltage of each of your units. This is to get an idea of their basic condition. If you're at no load around 49V that's not good.
2) Have you been able to turn them on? Do they go into alarm? Do the leds light up?
3) If they light up (without any load on them), can you try to talk to them via the console port? This is to see what they are saying with the different possible commands (help function to see the commands. Or switch to debug mode)
4) For the charger, it's that 50 V is not common. Tomorrow I'll give you more info or ideas for that.
5) Is it for a private use ?

1) They seem to be OK generally, But yes the voltages are around 49v or higher (3 of the pack sets have expanded cells but the rest look to be in good shape).
2) The 5x US2000s all power up OK, I do not have an SC0500 BMS unit for the 10x H48050 units yet, so I have been using the best battery pack sets from those in the US2000 ones.
3) I have connected to them using MultiSIBControl - Monitoring an dcontrol for Axpert, PIP, Pylontech, Pylon, PIP4048, PIP5048, Voltronicst  software and they look OK, although the SoC varies. I do not see any obvious faults or errors.
4) Yes a usable charger is what I need to find so that I can try and charge them all up first.
5) I just want to use them privately.