[RE-wrenches] Trojan IND9-6V settings with Outback FX and Flexmax 60

[Larry Crutcher, Starlight Solar Power Systems]

Hi Chris,

Moving from VRLA to flooded, the customer should know it takes about 20% more energy and longer charge time to get to 100% SoC. 

Trojan states that charge current should not be more than 10-13% of C20 discharge rate. For the IND9, that's 46 to 60 amps maximum per string. VRLA can handle MUCH more.

Since sun-hours per day is the same and you need more energy to get 100%, more PV solar or more generator time may be required.

I have seen 3 different published specifications from Trojan Battery about charging their cells. One publication lists 2.45 to 2.79 Vpc. 2.79 volts!! Does anyone charge this high? I'm a fan of high voltage charging, but I generally don't go over 2.53 Vpc for flooded. But, since the IND9 data sheet lists 2.45 Vpc maximum, I'de stick with that.

Larry 

3 attachments, Trojan charge specs.
 







On Feb 19, 2014, at 9:36 AM, Chris Mason <cometenergysystems at gmail.com> wrote:

I just switched a customer from VRLA batteries to Trojan IND9. I changed all the battery settings to the numbers recommended by Trojan but I would be interested to hear any recommendations from experience. Please let me know if you have experience with the charge and discharge settings for this combination.

-- 
Chris Mason
President, Comet Solar
www.cometsolar.com
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