Review of Schumacher SP-1 2/4-Amp 6/12-Volt Automatic Battery Charger/Extender

Customer Ratings:
List Price: $42.12
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This product is a perfect 2amp charger for long term battery maintenance. It is NOT a fast charger and isn't designed for rapid charging of a fully discharged battery. It is designed to be plugged in and left on for long periods of time. While 2 amps may not seem like much, competitors products of which I own 2 as well are typically only 1amp. Here's the breakdown,

PROS

Easy to understand LED readout

Multiple connection types (Hard Wire, Clip)

Solid and Rugged feeling plastic case

Lightweight design (Compared to metal housings on others)

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The product properly maintains my motorcycle battery as described, but it emits a high-pitched humming noise very similar to the every day ringing in my ears (tinnitus). The noise is constant whether maintaining a batter or not.. the unit just has to be plugged into the outlet. Friends who are in the garage for a few minutes always ask me "What's that sound??". The product works fine but I might switch brands if I ever need a new one.

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Having once had the good fortune to be in the factory, and to meet the patriarch of this brand, I have always been a fan of their products. I have a car charger from the 1970s and it is still in use regularly without failure and even looks new.

This new mini charger is what I use to keep my ATV ready. The utility connections are excellent and they include all the plug choices to fit your needs. I put the connection on with the two plugs and it is a snap to re-hook the charger for storage when I return the ATV to the garage. Very nice. The status lights are logical, the charger itself is quiet and is quite small to not take up space in the garage. Very small, in fact. These people are good folks and the products they make are high quality: buy this charger and forget about it.

Honest reviews on Schumacher SP-1 2/4-Amp 6/12-Volt Automatic Battery Charger/Extender

I typically like Schumacher battery products, for the money they are much better than Battery Tender chargers. That said, this is ONLY a 2 amp charger and not capable of 4 amps (which would make it good for cars as well). So don't purchase it for cars, motorhomes and boats unless you want something only to maintain a charge.