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Reviewed in the United States on February 21, 2025
These battery maintainers work great and keep my low-use automotive batteries in top condition.
Mark Yanchek
Reviewed in the United States on February 16, 2025
works well, good price
Eric Peller
Reviewed in the United States on January 31, 2025
I have two of these on my machines the value of two for price of one is great. Charged the battery and keeps it tendered. Cord length is perfect for reaching half way across garage. Fits both large and small 12v batteries well.
Jeffrey r stutzman
Reviewed in the United States on January 13, 2025
Well made and simple to use. They do what it says they will and I have no fails yet. They keep my batteries charged up here in the Northern Wisconsin Chill.
Jeff P.
Reviewed in the United States on July 12, 2024
I don't expect these to last too long given the country of origin and cost but we shall see.I put a new SLA battery (Sealed Lead Acid but it may actually be an AGM Absorbed Glass Mat) in my 12.5kW generator last year and never got around to putting a maintenance charger on it. I got the two pack of the 1A (1000mA) smart trickle charger and put one on my boat battery and the other on the genny batt. It took around 30 hours for the genny batt to drop to a trickle charge but I'm pleased that it did charge. The boat batt, basically a good-sized FLA battery (Flooded Lead Acid), took a around two days, but it too dropped to a trickle charge.They don't provide a digital display, but they seem to work quite well. So far, so good.I see some people don't understand how a battery charger works. In order to charge a battery, the charging voltage MUST BE HIGHER than the battery's floating voltage. Think of it this way: Understand that voltage is pressure. In order to get more energy into the battery it has to be PUSHED in by a pressure higher than what is in the battery. That is accomplished by increasing the charging voltage over the battery's voltage (Delta V). The higher the voltage difference (Delta V) the more pressure pushing energy into the battery and hence the higher the charging current.These chargers, as are most chargers, are a combination of constant voltage and constant current chargers. They have a Wattage maximum built into them which limits the overall output buy capping the Delta V to only provide a max 1A of output current. The instructions actually do a decent job of describing this process. If only people would read them.Do you think your cell phone battery is a 5V battery? The chargers have a 5V output - right? The battery in your phone is most likely a 3.7V Lithium cell. Delta V allows it charge.
1SamIam
Reviewed in the United States on December 9, 2024
This 2 pack of smart technology automatic 12 Volt battery trickle chargers at 1000mA that float charge operate perfectly.Love that these come with optional battery terminal hook-ups including the alligators and the closed loop ring ends to connect with. In some equipment like larger generators, they will have a trickle charger adapter already installed with the matching quick connect connector so, the extra connectors included will not be needed.These are easy to use and are excellent battery management charge systems for most chemistry configurations.AWESOME Equipment!
John Jay Russell
Reviewed in the United States on November 22, 2024
Battery tender is a must to keep your car or motorcycle battery charged at all times. Awesome product and easy to use.
Alpha Trailer Rentals
Reviewed in the United States on November 12, 2024
I have 4 and they are used frequently and work well.
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