mcarver316
New Member
- Joined
- Nov 16, 2022
- Messages
- 13
Hi,
I've searched and searched for similar topic without much luck.
I have a 2019 ford transit 350 XLT with traditional alternator, renogy dc dc 50S mppt combo and 3 renogy self heating 100 ah lithium batteries setup.
The starter battery voltage is consistently at 14.5 at idle. The starter battery voltage then drops from 14.5 to 13.1 volts when renogy 50S dc mppt charger is connected and alternator charging is activated.
From Renogy 50S manual, the starter battery charging 'cut in' at 13.2 volts in order to charge the house batteries.
Anyone have ideas what is causing the voltage to drop? Thanks!
All lights normal, (alternator, solar, service battery light, battery type). It is charging from alternator, albeit at average of 0.24 amps.
I've searched and searched for similar topic without much luck.
I have a 2019 ford transit 350 XLT with traditional alternator, renogy dc dc 50S mppt combo and 3 renogy self heating 100 ah lithium batteries setup.
The starter battery voltage is consistently at 14.5 at idle. The starter battery voltage then drops from 14.5 to 13.1 volts when renogy 50S dc mppt charger is connected and alternator charging is activated.
From Renogy 50S manual, the starter battery charging 'cut in' at 13.2 volts in order to charge the house batteries.
Anyone have ideas what is causing the voltage to drop? Thanks!
All lights normal, (alternator, solar, service battery light, battery type). It is charging from alternator, albeit at average of 0.24 amps.
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