[RE-wrenches] Outback EQ not holding voltage

jay jay.peltz at gmail.com
Tue Apr 28 18:25:23 EDT 2020


Hi Dave,

Only thing I would check is to see if lowering the eq by 1 volt changes anything. IE the batteries are just struggling to keep up. 

But the CC should tell you what mode it’s in right? IE is it regulating or is it full power. Either in the menus or just looking at VMP/watts 

If it’s regulating then it’s on the OB side 

If it’s max power then it’s on the battery side 

Jay Peltz

> On Apr 28, 2020, at 6:50 AM, Dave Tedeyan <dtedeyan at taitem.com> wrote:
> 
> Hi All, 
> 
> I've got an outback system (Radian 8048A, 2 FM80, 16 Trojan L16RE-B) where when the customer equalizes, the batteries hover right around the EQ voltage, but will often dip to 0.1v less. Because of this, the EQ timer does not count down properly, and so left to its own devices the system would equalize for way longer than it should, potentially forever. This will happen when doing an EQ from the solar on a bright sunny day, or the generator, or both. The customer can manually keep track of the time and manually stop the EQ after 3 hours, but that is not ideal. Has anyone dealt with this before and have any suggestions on how they fixed it? 
> 
> This system is 3-4 years old, and the issue only started in the past year or so.
> 
> Cheers, 
> Dave
> 
> Dave Tedeyan, PE
> Senior Engineer | Taitem Engineering, PC
> 
> 110 South Albany Street | Ithaca, NY 14850
> o. 607.277.1118 x121  f. 607.277.2119
> www.taitem.com <http://www.taitem.com/>
> 
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