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Ion Speed 4000 Battery Charger is rated 2.9 out of 5 by 20.
Rated 5 out of 5 by from Nice Charger - instructions are on review page! Instructions are tiny, if you find them. Solid red light is when charging. Blinking red light is bad battery OR battery is already charged (you can put it in a flashlight and check it or you can use a battery tester). Blinking green means battery is 85% charged or more ("ready to use") and solid green light means fully charged (100%). The smaller AAA batteries are put in slightly differently from the larger AA batteries. If you put the AAA in the charger by placing the flat side (negative end) onto the lower clips first, then drop the top (+) into the charger while pulling against the clip just a bit, it works. (I have seen reviews on another site where the user could not insert the AAA size properly). On the larger AA batteries, I place the top (+ side) into the charger first and slide the bottom into the charger. Not hard once you do it. If you can't put the battery into the charger, you might need to stop buying items like this. If you want the speed charge option, you just put two batteries in the charger instead of using all 4 slots (use one side of the charger). If no lights come on, the battery is not inserted properly and might just need to be rolled into the slot better to make good contact.
Date published: 2019-01-17
Rated 5 out of 5 by from excellent I have 2 of these (so I don't have to fight my son for it) And use rechargeable batteries in many places. Just be aware: a blinking red light doesn't necessarily mean a bad battery. It could also mean you put a charged battery in!
Date published: 2018-03-29
Rated 5 out of 5 by from Je ne comprends pas la faible note Charge vraiment rapidement. En 1h30, c'est chargé complètement. Ça semble prendre les piles Duracell DX1500 pour obtenir ce temps. J'ai essayé avec d'autres piles NiMH et ça prend plus de temps mais le package que j’ai acheté contenait 8 piles AA, ça couvre pas mal les besoins et au prix de l'ensemble (25$ chez Costco), c'est un bon deal.
Date published: 2018-01-19
Rated 5 out of 5 by from Very Good Product works just like it says it does best to use Duracell batteries with it
Date published: 2016-07-08
Rated 4 out of 5 by from Public Service Announcment Green light blinking - battery is charging. Wait Green light still - battery is full. Red light blinking - 2 options: error - check if battery is correctly in, try rotating and moving them around a bit, or WAIT A BIT. Or something's broke. Red light still - Something's broke. Maybe batteries, maybe charger. You Are WELCOME
Date published: 2017-03-09
Rated 4 out of 5 by from Works great. I have one of these chargers and it works very well, but imagine if it also had USB ports to charge phones and other devices, how awesome would that be?
Date published: 2017-02-27
Rated 4 out of 5 by from Found instructions for this international charger Here is where they have the PDF manual: This page choose menu > “Tech Library” > “Rechargeables and Chargers” (I clicked on words not ‘download’) > Find Ion Speed 4000 in ‘Size’ column then click > "Download" to the right of Ion Speed 4000 in the ‘PDF’ column. Wish a link to “Manual”was here to save time. I got here first looking for the manual to know what the lights mean i.e., usable or fully charged but no joy here, had to hunt. The charger works internationally with input 100-240 volts AC 50/60Hz. Which means with cheap local adapter you can charge your batteries in outlets around the world. It uses 10 watts.
Date published: 2017-02-21
Rated 3 out of 5 by from Several problems with this product. First, Duracell is a major company, and the batteries appear high-quality, so I had high expectations for this product. I also liked that it appeared compact. (And thought it could charge in the compact, folded mode.) However, after opening the product, the plastic appears flimsy and easy to break. And it must be unfolded open to use. The instructions are very annoying. Tiny print, almost impossible to read. And the instructions don't make any sense in terms of defining the Green LED lights. They say that if the lights are solid green, the batteries are "charged", and that if they are blinking green, the batteries are "ready to use." What's the difference? Finally, the AAA batteries don't appear to seat very securely into the charger, and it's not clear when they're properly lined up.
Date published: 2018-03-11