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ewarnerusa's avatar
ewarnerusa
Nomad
May 27, 2013

Help with custom Morningstar Tristar PWM setup

Hello. Can I get some help setting up my Morningstar Tristar 45 PWM controller with custom setpoints? I have been using it at the stock 14.6V absorption voltage profile with temperature compensation...
Salvo's avatar
Salvo
Explorer
May 31, 2013
The OP shouldn't be seeing a voltage spike in the magnitude of 0.7V. There could be a bad connection, or batteries are old.

What are the conditions when inverter turns off?

1. Battery type and age
2. Cabling inverter and charge controller
3. Battery voltage just prior to shut-down
4. Battery voltage right after shut-down

It may be time to measure battery resistance. Do you have an amp meter?

Sal

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