5A BQ24650 Charger 18V MPPT Solar Panel Controller Buck 3S 4S 11.1V 12V BUCK Lithium Battery Li-ion LifePo4 Charging

MPPT Technology---5A Solar Maximum Power Point Tracking

High efficiency synchronous rectification buck charge management, up to 96% efficiency

Solar Battery Maximum Power Point Tracking (MPPT)

The maximum power point tracking (MPPT) of the solar cell is to ensure that the photovoltaic cell always outputs the maximum power in order to fully utilize the solar energy when the light intensity changes. In the general case, the MPPT function needs to be implemented with a switch mode DC-DC converter to maximize the product (output power) of the output voltage and the charging current.

Using the step-down switching synchronous rectification DC-DC conversion method to realize the maximum power point tracking function of photovoltaic cells, the input voltage can reach up to 28V, which is very suitable for applications with large difference between input voltage and battery voltage.

Charging management board features:

1. High-end technology MPPT solar maximum power tracking charge management, with turbulence, constant current, constant voltage charge management

2. Adopt imported high frequency low conduction internal resistance N-type MOS tube, high efficiency flat high power inductor, alloy current detection resistance

3 high-speed and efficient charging

4. Dual status indicator, when the battery is not connected, the red/green light is off, the red light is on when charging, and the green light is on

Basic parameters:

Input voltage: Nominal 18V solar panel (no-load 21V solar panel) is very suitable for 40-60W solar panel

Rechargeable battery type: Nominal 12V battery (3 string lithium battery, 4 string lithium battery, 4 string lithium iron phosphate battery)

Output current: maximum constant current 5A

Wiring method: wiring

SOLAR+ input positive, - input negative (SOLAR)

BAT+ positive battery, - negative battery

Size: 38*60*21 high mm (including heat dissipation)