Select Product With Shell Case
Brand Unbranded
Current Conversion DC to DC
Type Controller Module
Marke Markenlos

Check the listing for details. DC 6-60V Solar Battery Charger Controller Module Current Protection Board. Condition: New. Listed at 6.39 USD. Relay Module. It can turn on and off the output by relay. It only plays a switching role. A2: This is because your charging current is too large or the battery capacity is too small. The relay is disconnected.

$5.11
$6.39