[RE-wrenches] LiFePo4 vs BOS

[Starlight Solar Power Systems]

Howie,

We have many hundreds of Li battery systems sold and installed. Never had any failure of PV controllers including Outback due to charging Li-ion.

Larry Crutcher
Starlight Solar Power Systems




On Jan 7, 2019, at 11:23 AM, Howie Michaelson <Howie.Michaelson at gmail.com> wrote:

Hey Dan,
Are you saying that OB is claiming that NiFePO4 batteries are smoking their charge controllers? Do they say why?  Is this also true of LiFePO4 batteries?  If you wouldn't mind mentioning which battery manufacture you are dealing with?
Thanks,
Howie Michaelson
Sun Catcher

On Mon, Jan 7, 2019 at 11:06 AM <dan at foxfire-energy.com <mailto:dan at foxfire-energy.com>> wrote:
I've been asked to trouble shoot a problem with a new set of LiFePO4 batteries on an older OB system.. The customer complained the system would go dark within a few min. of the batt indicator light going yellow.. From what I've gathered so far the BMS of the batteries is shutting down.. The distributor sent out one of their techs, but it looks like they missed a few adjustments.. The biggie is their CC (OB FM60) went into snooze mode within a day of being connected to these guys, and now OB tells me the CC lost it's FETs and that's pretty common with NiFePO4 BMS.. also when the tech came out to commission the bank, one of the terminals on a battery melted and another distorted.. the customer has a few more days to accept the bank, I'm thinking send them back.. Comments?


Dan Brown
Foxfire Energy Corp.
Renewable Energy Systems
(802)-483-2564

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