BFL13 wrote:
How can you use a Trimetric monitor with a BB?
You can set the 100AH as your capacity, and set the charging efficiency for Li, you can make 14.4 your target voltage, and 4 amps your target amps for "full".
But the Trimetric uses the AH counter wrt the AH capacity entry for saying what the % SOC is. It does not use rising cell voltage.
Mobilesport was reading %SOC from his monitor based on the BB voltage vs % SOC specs, but his AH count was way off. A Trimetric would not do that. How did Mobilesport's monitor manage to?
Here's what Bogart Engineering told me last summer:
Hello Steve,
We have a link below to the TM-2025's User Manual. In it you'll find, on pages 6 & 7, a description of all the 'P' parameters.
For Lithium LFP batteries, the changes needed are as follows:
P1 - 14.4 Volts.
P2 - 2% of P3 (battery bank capacity)
P3 - Battery Bank capacity in Amp-hrs
P7 - L3
P10 - 98%
P14 - 0.00 hrs
- Kedar
http://www.bogartengineering.com/wp-content/uploads/docs/TM-2025%20Users%20Instructions062017.pdf