Battery Tender 800 is a SuperSmart Battery Charger that will Constantly Monitor, Charge, and Maintain your Battery. It's Encapsulated and Protected from Moisture by an Electrical Insulation

This is an excellent trickle charger for my motorbike. Love it.

My battery was dead dead dead... It is no longer :) worth every penny great product in any possible way

good

Just the job, small but perfectly formed, sits hooked up to the battery of my classic Jaguar (XK120) to keep it in tip top condition during the winter months when the vehicle is not in use,fit it and forget it, well done Deltran

I had a Deltran some time ago. I tried a couple of other makes that were not as good so I have purchased again. The unit had a US plug and the supplier provided complimentary converters.

Awful.. It was packaged for 6 months after my purchase..Then when I came to use it, the charger was lifeless. Tried multimeter tests / fuses etc but to no avail.. Do your research.. The internet says A LOT of these units are faulty by default. Its a nice idea having a waterproof battery charger, but NOT this one.. Terrible quality.. Dont just take my word for it..Google it !!

I ordered this Battery Tender 800 waterproof charger a couple weeks ago and had installed it onto the battery of my mustang that sits for quite a while between starts and drives. Since the battery was at full charge it litterally took a very short time to go into storage mode and do what it was designed to do. Previous to this item I had the Battery Tender Jr that had failed after approx 6 months BUT, in Deltrons defense, I was using it between my jetski and my mustang. I knew it wasnt designed for outdoor use, especially here in the humidity of southwest Florida ( I did have the forementioned items under a carport and the item covered by the jetski seat or mustangs hood). I never blamed the Deltron company and never left a poor review as I was more to blame for using the wrong device for outside storing. I do also own the Battery Tender Plus and have used it inside my storage shed on my RV battery for about 1.5 years now with no problems at all. Though I have not given the BT800 enough time to write a thorough review I realize that thier prodects are above average for the price and wanted to share my overall experience in general with thier products. I can safely assume the BT800 will surpass its expectations as it was desinged as an outdoor product. My mustang does sit under a carport and the BT800 sits under a closed hood where it will never actually get rained on, come in direct sunlight, chemicals, or any type of water outside of humidity. So since its designed for this and even harsher conditions I feel assured it will give me years of practical use. I will come back periodically to update this review as time goes on. I would recommend any of the Deltron products to anyone who plans to use them in the way they were designed! ***update 2/1/15*** Unit still works perfectly under the stangs hood, keeps the battery charged perfectly so its ready to go when I decide to start or drive it. I still highly recommend this product for anyone needing to maintain a battery that is outdoors!

Great battery charger. Doesn't work super fast as it is just a battery trickle charger/maintainer, but it does not have any issue charging and keeping charged my 12 volt deep cycle marine trolling motor battery. Comes with clamps that you can use to attach to the battery terminals, or little eyelet terminal leads that you can screw onto the battery terminals. They are interchangeable with the in line connector, and make it very easy to switch out or remove the battery. Simple indicator light lets you know when charging, yellow, and when it's maintaining/done charging, green. Incidentally, I also used this to maintain power to my car when I installed a new battery. Some makes/models can get a little fussy when the battery is disconnected and the car loses power. This can result in needing it to get reset at the dealer. However when you maintain some current, for example with a maintainer like this one, you can avoid those problems. I have been using this product for about 3 years, and would recommend it to anyone.

Excelente y original perfecto para las motos yo lo ocupé para una Harley ultra

Un poco grande de tamaño, pero al igual de gran amperaje. El único problema que le encontré es que el cable se calienta en la parte que conecta con los cables de la batería. Sobretodo cuando está en modo de alto amperaje. La puse para cargar una batería AGM de un Mini Cooper que tiene el sistema de encendido/apagado (start/Stop) en los altos y qué pasa largas temporadas guardado. Funcionó de maravilla. He tenido varios artículos de esta marca y me parece muy buena.

Broke almost immediately. Very bad quality.