6 of 4 people found the following review helpful.

Innovatively designed auto battery charger

Pros:
(1)Innovative and well-thought design
(2)Good build quality
(3)Light weight and portable size. Easy to store and carry around
(4)The charger can tell the health of your battery with 'Diagnostics' feature
(5)can rescue or repair 'sick/dead' battery which is deeply discharged, sulfated or damaged.
(6)Owner's Manual& User Guide is well-written and very helpful
Cons:
(1)Warranty service is not free, in fact, it is quite expensive. I think most of Genius Charger owners are not very happy about it when warranty service is needed. Hopefully, repair rate is very low.
(2)The price tag of G1100 is almost $45, a bit overpriced, but good battery maintenance and extended battery life compensate the cost.

I got my G1100 for less than a week. I got trouble when I used it to charge my battery the first time, all LEDs illuminated and were blinking once the AC power was plugged into an electrical outlet. Obviously, it was an error warning. I checked all connections and found nothing wrong. I suspected my G1100 is a bad charger. I looked into Troubleshooting in User Guide before calling NOCO Genius for help. Troubleshooting indicates that my 2 year old battery is in very bad condition as a result of sulfation or damage. COSTCO gave me a free replacement because my old battery is still within 3 years warranty. G1100 saved me $75. I installed the new battery, then charged it again. All 5 charging steps went through as smooth as expected and successfully. It took about 5 hours to complete a full charge (from 25% to 100% full charge). I will update my review when needed. So far, everything is going well with my G1100 charger.

Yes, I recommend this product.

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