Battery Tender Review

"Make sure that you use the charger that comes with the battery, and make sure the charger has a shutoff device, an automatic shutoff device, so it's not overcharged. That's typically the biggest issue which causes batteries to fail. – Thomas Kiklas"
Last updated - Oct 2nd 2020 by: Protheus
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Battery Tender 12V, 270mA, 5W Solar Battery Charger

About Battery Tender

Meta score: ⭐️⭐️⭐️⭐️⭐️ 5/5

Our verdict: Battery Tender is one of the top rated battery charger. During our testing we started to love the Battery Tender because we realized how many exceptional features it got. The Battery Tender is a creation from a company called Battery Tender but Amazon are responsible for the shipping and delivery "Fulfilled by Amazon" so Amazon will ship the item from a warehouse near you. This means added safety and faster delivery times for you, so we think that is good.

If you would want to own a Battery Tender you can buy it on Amazon.com.
Check out Battery Tender on Amazon now, where you can buy it for $74.95 (In Stock.) If you buy your Battery Tender at Amazon you will also get the shipping for free, which is a big plus in our books. You can get this battery charger with Amazon Prime. Want to know more about Amazon Prime and get a one month discounted trial?

Specification for Battery Tender

  • 5W solar panel with built-in Battery Tender 3-step microcontroller for super-smart charging that ensures that your battery is not damaged by overcharging
  • Output: 12 VDC, 270 mAmp DC, 5W max for battery charging and maintenance
  • Worry free: Reverse polarity protection, waterproof, sparkproof, built in temperature compensation sensor, and CE approved
  • Great for: Outdoor use, trickle charging, off road motorcycle, all-terrain vehicles
  • Approximate dimensions: 14"W X 16"L X 1"H
  • Weight: 3 pounds

Battery Tender Image Gallery

Check out Battery Tender at Amazon now

Best Solar Battery Tender

We think that the best solar battery tender is the combined solar panel and battery charger from Battery Tender. Highly recommend this product for anyone that wants a low cost, high capacity, high power solar charger. Sturdy construction, I hooked it up to my ATV and it fires right up, no problems. I bought this to keep the battery on my car in shape. I don't use it often, and I didn't want to have to pop the hood after every trip to hook it up. I leave this in the car on the dash. I've been using it for months. I use this charger to keep my quad battery Power. Edge 13005 charged. It connects easily and charges. As expected, it does not charge as well as my plug-in Battery-Tender-Plus, but I think that's only because where I live we have nighttime thus limiting it's actual charging time. It would be nice to be able to protect the connectors when they're not connected to the battery.

I have a minibike battery, so I plugged this into a battery I already have. When I put the charger on, I know the battery is fully charged, so I don't have to worry about the battery going dead. This is a great option in contrast to installing a power line or burying the charger in a corner and hope it doesn't get stolen. I have a 2002 BMW M3 convertible that I don't drive much in the winter and had been going through batteries every year. I bought the 10W because the car does draw a lot of juice even when parked and I wasn't confident I'd be getting perfect solar orientation. I bought the OBD II connector with it and leave the solar panel in the car on the dash. Even after weeks of not starting the car up the battery remains at 12.4 volts and the car starts right up.

Micro Controlled Battery Tender

The battery charger in this kit has a built-in microcontroller for smart charging. Buy this one, you won't be sorry. I own a 2002 BMW M3 convertible that I don't drive much in the winter and had been going through batteries every year. I bought the 10w because the car does draw a lot of juice even when parked and I wasn't confident I'd be getting perfect solar orientation. I bought the OBD II connector with it and leave the solar panel in the car on the dash. Even after weeks of not starting the car up the battery remains at 12.4 volts and the car starts right up. I check the lights on the solar charger every so often to make sure that it is running for the most part in maintenance mode. If it saves you one battery, it's paid for itself. Use if for my bike, its tall enough that it stands on the edge and leans nicely on the back of the bike. Battery is charging well so far and I will definitely recommend this one over the 10 or 5 watt charger.

Battery chargers without control can easily damage your battery since it will not stop charging when the battery is full. Use this for keeping the single deep cycle battery in my quad fully charged along with some parasite power draws. I have this on my boat hooked up to my batteries, now I dont have to take them out and charge them, I get a continuous charge all day long. This thing is great! I use it to keep my batteries charged in the RV. It works well. I haven't had the low battery alarm go off since it's been hooked up. One less thing to worry about. Installed this on the dash of a Ford Ranger that sits for a long period of time while I drive a company car. The battery used to go dead and I always had to jump start it. Never do this anymore!!!Highly suggested to auto and boat owners whom vehicles sit for any period of time. Store my ATV's in a car hauler.

Worry Free Battery Tender

Besides the charge controller which is a huge quality of life feature the Battery Tender is also spark and water proof and even has a heat sensor preventing it from overheating. Buy this product and you will not be disappointed. I bought this to keep the battery on my car in shape. The car has sat since December and had a dead battery. The battery was fully charged in a day and I am very happy with how well it works. I would give it 5 stars but the cables are very short. I have a Mini Cooper with the battery in the trunk and the cable could not reach the front seat, if I had to connect in the engine bay I would be forced to buy the extension. Product works just as designed. Just as a note, the charging sensor is next to the solar panel. I would like it to be next to the end plug or have an option to plug one inline. I keep my motorcycle in the barn and the cable could not reach the battery, if I had to connect in the engine bay I would be forced to buy the extension.

I own a deep cycle battery used in a car I don’t use often. I recently had to move it to a car I don’t use often, and I didn’t want to have to deal with a plug in charger every time I want to use the car. The thing that really got me is that I can have the panel connected to the battery while using the car. I have it connected to my battery in the driveway, in the woods, on the boat, and it has worked for years. I don't have to switch batteries or charge the battery. It is great for storage locations without power. I have it hooked to my tractor so I don’t have to disconnect it after long periods of none use. Seems to work great. I use this to keep my full sized pick-up battery charged.

Battery Tender In Conclusion

I would recommend this product to anyone who has a motorcycle that is not using often. My original Battery Tender for my boat lift was a/c powered and caught on fire in the dock box that housed the hydraulic pump and controls. This seems to be a much better, and safer solution. Compared to the price I paid for a 5 watt solar charger for my driveway gate, this was a real bargain! Died after 6 months. I installed on a roof, outside, but I thought this was OK for outside use. I’ll return and edit this based on response, but I’m not too plussed at this point. Fast forward over a year, and I finally contacted Deltran. Check out Battery Tender on Amazon now

More Top Rated solar battery charger

We have reviewed several other items of the solar battery charger type. Below are the reviews for the ones who we think are the best in class: