BS123020 with Bluetooth 12V Rv Solar controller and DC charger in one

Product introduction

This is a automatic Solar panels & DC-DC charger that can charge the main battery through the alternator and starter battery, or Solar panels charge the main battery , DC-DC battery charger designed specifically for motorhomes, campers, ships, etc.

MPPT Solar & DC Charge

This is a automatic DC-DC charger that can charge the main battery through the a and starter battery, or Solar panels charge the main battery (some models), DC-DC battery charger designed specifically for motorhomes, campers, ships, etc. lternator
1.The charger can increase the charging efficiency of the solar panel by 10-30% through MPP technology (search for the maximum power point)
2. The charger can charge the main battery according to the specified current by boosting or stepping down to ensure that the main battery is charged according to the standard charge curve charging 3. When the vehicle is not used for a long time, you can maintain a small trickle charge flow for the starter battery to ensure that the starter battery has enough electricity to start the vehicle

Product parameters

Main battery “BOARDⅠ"
Lead-Acid, Gel, AGM Batteries Nominal Voltage:12V
LiFePO4 Nominal Voltage:12.8V
lithium-ion(NCM) Nominal Voltage:11.1V
Capacity (Battery Size), recommended:45-280AH
Battery voltage range:8V-16V
Vehicle Starter Battery “Start II”:
Vehicle Starter Battery Nominal Voltage:12V
Capacity (Battery Size), recommended:60AH
B2B Charging operation
Start battery voltage range:10.5V-16V
Max.charge power:390W
Max. chrge current:30A
"D+" signal voltage:8V-16V
MPPT solar charge controller
Max. PV power Max: 250W
PV charge current Max:14A
Open circuit voltage:50V
Board ⅠMax.charge current:20A
PV charges the start battery:0-5A
Temperature compensation: 3mv/℃/2V(It needs to buy the NTC together)
Main battery temperature sensor”T T:YES
Main battery voltage detection”SS-,SS+":YES
Stand-by current: 30±2 mA
Operating temperature: -20-50℃

0 degree of temperature offset needs to purchase the NTC to realize it