Yes, I’ve got diodes on the solenoids. The ability of a lead acid battery to absorb spikes is a nice feature. I’m suspecting that the EarthX has a higher current draw when recharging and the sensitive B&C voltage regulator trips the breaker.
Also, the new skytec starter is the field wound model. I really liked the light weight skytec starter, but the permanent magnet current draw sucks.
Originally Posted by Mich48041
Craig, is there a voltage-spike-protection diode connected across the starter contactor? Another possibility is a bad connection in the charging system that causes unstable voltage or voltage spikes. A lead acid battery will absorb those spikes. But an EarthX battery will disconnect itself to prevent damage due to high voltage. The problem could be in the aircraft electrical system, but is masked by a lead acid battery.