Sunforce 50022 5-Watt Solar Battery Trickle Charger

Sunforce 50022 5-Watt Solar Battery Trickle Charger review

The sunforce 50022 solar charger has a shape of a square board. The small size and modular type of the charger would suit both stationary and mobile applications. The charger is suitable to charge automobile, tractor, electric fence, deer feeder, boat batteries and other machinery.

RATING : 4.0/ 5

PRICE : $ 55.04

Product Specification

In the box 

A 5W solar panel, 9.5 ft connector wire, 12V DC plug, 4 stainless steel screws, battery clamps.


The unit measures 14″ x 0.75″ x 13″ (WxHxD) and weighs 4 pounds.

It is rated to work in the temperature range of -40 to 176 degrees Fahrenheit. But continuous exposure to solar radiation of about 800 W/sq.m can cause damage to the package material.  Also the black colour of the support structure can hasten the damage of the charger.

Solar Panel

It is basically 15″ x 14-1/2″ amorphous solar panel which is said to be weatherproof. The support body of the charger is made of durable ABS plastic.

The solar panel of the charger is rated to generate 5 watts of electricity to maintain the 12 V batteries functional especially during storage. The small power of 5 watt does not require charge controller and circuit breaker. However the built-in overcharge and discharge protection are added advantages.
sunforce 50022 solar charger

The power though low (5 W) is sufficient enough to thwart the self discharge of batteries on storage (it is an effective use of the technology of thin films and cheap cost of amorphous silicon).

The pre-cut holes for installation could facilitate easy and safe installation while the provision of stainless steel screws could avoid corrosion of the fastener. Without many accessories, the basic unit of the panel with the wire and plug allows quick set up for use and wrap up during non-usage.


  • Prevents the drain of charge in the automobile battery if not used for a long time.
  • Contains pre-cut holes for easy installation.
  • The built-in overcharge and discharge protection avoids damage to the device.
  • The charger parts come with warranty.


  • The charger as a whole is fragile and can’t withstand years of exposure to heat .