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My solar panel does not appear to engage the DCDC chargerUpdated 3 months ago

All iTechworld DCDC chargers prioritise vehicle input over solar. Even when the vehicle has stopped, the DCDC charger will charge the auxiliary battery via the cranking battery to reach a voltage of 12.8V. This is to get the highest amount of current possible. Once the cranking battery has been reduced to 12.8V or below, the DCDC charger will switch to solar.

Disconnect the cranking battery with the engine turned off to force a solar charge. Wait until the solar engages, then reconnect the cranking battery. 

Solar input charging criteria are as follows:

- Input voltage: 16V - 25V 

- Input current: +3A

If the solar panel does not meet the criteria above, the DCDC charger will 'click' and reset until it does. 

All solar panels used with an iTechworld DCDC charger must be unregulated.

The DCDC charger must be connected to the vehicle for it to work correctly. Without vehicle input, it cannot operate as a solar controller independently. 

 

 

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