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PIP 3024/4024 inverter with 6S battery bank

Posted: Mon, 13 May 2019, 18:48
by Jacob89
Hi all,
I have purchased myself a used Tesla model S battery module. I'd really like to use it with one of the MPPSolar PIP inverters. Unfortunately since my tesla battery module is in a 6s configuration, the voltage range does not line up well with that of the PIP inverters. The low voltage cut out is 21v, and I need to go down to about 19v to get the most out of my battery. Also, I don't want to charge it much past 24.5, but the minimum charge voltage settable in these inverters is 25v.
Does anyone know if there is a way to get these inverters to play nicely with the voltage range I need, like changing the firmware or something?
Otherwise I think I'll have to spend a lot more money on a Victron.

Re: PIP 3024/4024 inverter with 6S battery bank

Posted: Mon, 13 May 2019, 20:56
by coulomb
Jacob89 wrote:
Mon, 13 May 2019, 18:48
... the voltage range does not line up well with that of the PIP inverters.
Yes, they're just not 24 V batteries. 7S would have been a much better fit.
Does anyone know if there is a way to get these inverters to play nicely with the voltage range I need, like changing the firmware or something?
If a suitable firmware update file was available, it might be possible. But running an inverter at 19 V when it's not designed for that voltage could be a problem. To get full power out of the inverter, the battery current at 19 V would be more than it was designed for. It might be fine, but it might blow MOSFETs or the like.
Otherwise I think I'll have to spend a lot more money on a Victron.
Do they have a wide enough range to cater for these batteries? If so, that might be your only realistic option.

Re: PIP 3024/4024 inverter with 6S battery bank

Posted: Tue, 14 May 2019, 17:33
by Jacob89
coulomb wrote:
Mon, 13 May 2019, 20:56

If a suitable firmware update file was available, it might be possible. But running an inverter at 19 V when it's not designed for that voltage could be a problem. To get full power out of the inverter, the battery current at 19 V would be more than it was designed for. It might be fine, but it might blow MOSFETs or the like.
I see what you're saying, but I don't anticipate trying to run the inverter at full load when the battery is that low.
I was just reading the manual for the PIP-4024MSP, apparently it can go as low as 20v, and the charging voltage can be set as low as 24v, so I think it maybe a better option.


Do they have a wide enough range to cater for these batteries? If so, that might be your only realistic option.
Yes they go down to 19v. I know there are some people using them successfully with Tesla battery modules.