[RE-wrenches] Battery load tester purchase advice?

Dan Fink danbob88 at gmail.com
Mon Aug 7 06:51:20 PDT 2017


Thanks to everyone for their input, it really clarified how to get the data
Trojan is looking for. I am going to go with what we have in stock as a
"Trojan Approved" load tester is out of my price range, and the reasonably
priced auto parts store ones hit you 100+ amps plus as they are trying to
test CCA, not SOC. I have a voltage logging USB unit along with a current
logger and CT. We'll use a small inverter and switchable AC light bulbs for
load so that it stays constant at the 25A Trojan wants to see, and in the
future we'll be able to adjust it for amperage by switching in and out more
light bulbs.

Dan Fink
Professor of Solar Energy Technology, Ecotech Institute
IREC Certified Instructor™ for:
~ PV Installation Professional
~ Small Wind Installer
Executive Director, Buckville Energy
NABCEP Registered Continuing Education Providers™
970.672.4342



On Mon, Aug 7, 2017 at 2:05 AM, Hugh <hugh at scoraigwind.co.uk> wrote:

> I have used a load resistor on a voltage controlled relay VCS from solar
> converters and a USB data logger. I only used the relay because I didn't
> want to kill the battery or sit watching. USB voltage loggers are good
> things to own anyway.
>
> Hugh
>
>
>
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