[RE-wrenches] LiFePo4 vs BOS

[Howie Michaelson]

Good to know Larry. I'm just trying to clarify what Dan is setting and what
outback is claiming.
Thanks

On Mon, Jan 7, 2019, 2:43 PM Starlight Solar Power Systems <
larry at starlightsolar.com wrote:

> 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> 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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