This is the summary of consumer reviews for Battery Tender 021-0128 Battery Tender Plus 12V Battery Charger. The BoolPool rating for this product is Excellent, with 4.80 stars, and the price range is $45-$68.

The Battery Tender Plus 12-volt/1.25-amp Battery Charger keeps the 12-volt vehicle batteries optimally charged when not in use.

Most reviewers highly recommend this Battery Tender product. This product is great for keeping battery charged even if you are storing your vehicles through winter. Most people using this product do not have any problem starting their vehicles that are sitting idle. Battery Tender charges the battery quickly and in most cases is easy to install without opening the hood. The charger comes with additional accessories like BMW type plug, the cigarette lighter adaptor, and alligator clips. Most reviewers find the indicator LEDs helpful to show when the charging is in progress and when it is complete. Battery Tender has many Idiot-proof protections in place.

Reviewers do not like the 10 year warranty provided with this product. The warranty is expensive and might include processing and shipping charges. Some reviewers recommend 5Amp unit for larger batteries. For some reviewers their unit failed after couple of months.