DieHard 71222 Fully-Automatic Battery Charger / Engine Starter for 12- Review

Average Reviews:

(More customer reviews)This is listed as a "fully automatic" car battery charger, which means that if you select a charge amperage it's supposed to automatically maintain that charge amperage.

However, "fully automatic" does NOT mean this is a Battery Maintainer. This does NOT have Float-Mode Monitoring. You cannot just connect this to your car battery and forget it because if you do, pretty soon this will completely destroy your battery.

If you do not disconnect this charger after your battery is fully-charged, it will overcharge your car battery which will reduce it's capacity and eventually ruin it permanently. You need to read the manual carefully to figure this out and you need to connect a separate battery meter to determine if the battery is fully charged.

You can safely ignore the meter on the front because it's useless. With a fully dead battery, the meter will show as fully charged.

This is O.K. for a brute-force charging but the phrase "fully automatic" in the title is very deceptive. There are much better car battery chargers out there for less money that will keep your battery healthy.

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Product Description:
The DieHard 71222 12-Volt Battery Charger / Starter brings a fast, powerful charge wherever it's needed. The DieHard 71222 is ideal for use in cars, trucks, boats, RVs, farm equipment, motorcycles and lawn tractors with 12-volt batteries. Features:Two LEDs power on/full charge Rust-proof, shock-resistant polypropylene case for extended life and safety Solid-state circuitry with silicon diodes for optimum performance Spark-proof protection in automatic mode for added safety Copper wound transformers for long life Reverse hook-up protection, UL listed 2-amp trickle, 10-amp fast charge, 50-amp engine start Three-year general warrantyWhat's In The Box:DieHard 71222 Fully-Automatic Battery Charger / Engine Starter for 12-Volt Batteries

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Schumacher EC-4000-USB Large Emergency Glove Box Charger w/USB port Review

Average Reviews:

(More customer reviews)I wanted with anticipation for this product ans was let down. The charger simply doesn't work.

It's been charging over 24 hours now and the charging light stays green, it doesn't change to red as mentioned in the manual.

When I attempted to use it, thinking the battery was fully charged ( Maybe it came completely charged that's why it was green all the time), it's actually the opposite, the battery is completely drained.

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Product Description:
Never be stranded again.This great little unit allows for safe charging of your battery without leaving the safety of your automobile.Don't ask strangers for a jump again.Plug the EC-4000-USB into your DC power port of your car, wait 15 - 20 minutes and drive away,just that simple!

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