Sunsei SE-150 2.25-Watt 15-Volt Solar Panel Battery Charger / Maintainer 25003 Review

Average Reviews:

(More customer reviews)I purchased this for trickle charging the battery on my tractor. It tends to sit (covered) in a sunny spot, and, it is an electricity hog when I use the lights on it. It has worked well for about a month maintaining the charge on the battery, making up for the poor output of the old generator on the tractor, and boosting the starting and lighting power.

This unit provides a constance 0.15 amp charge. I have a few concerns. I hooked up a high quality voltmeter to it and the charge read somewhere between 16 volts and 18 volts (off the scale on my volt meter). Under a load (once connected to the battery) it may read a lower voltage but I have not measured it under load.

My other concern is that this does not have any kind of voltage regulator.When your battery reaches its full charge there is a possibility of overcharging the battery.

In any event, it charges a battery over a period of about four days and keeps it charged.

A real plus to this unit is that it is accompanied by an excellent array of leads. It has an extension cord that is about 8 feet long. There are four types of leads enclosed with the package.

The first are bare wires (+ and - (red & black)) that, on the other end, plug into the unit or the extension cord.

The second are a set of alligator clips (+ and - (red & black)) that, on the other end, plug into the unit or the extension cord.

The third is a male cigar lighter adapter that plugs into the unit or the extension cord.

The fourth is a female cigar lighter adapter that plugs into the unit or the extension cord.

All of the connections and leads are of good to high quality.

With these attachments, you have the versatility you need to hook it up to any vehicle or 12v battery.

This is well worth the $50 (approximate cost plus shipping).

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Product Description:
Sunsei SE-170 Solar Battery Charger for Cars, Boats and other Small Vehicles - There's nothing more frustrating than returning from holiday only to discover that your car won't start! Solar power puts an end to the practice of plugging in your car. Now you can maintain your car battery using the light of day. Simply place a Sunsei Solar Battery Charger SE 170 on your car's dashboard (or attach it to the window using included suction cups) and keep the battery charged. Our solar panels are specially designed to work through glass.