Duracell CEF27 ION SPEED 4000 Hi-Performance Charger
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Household Battery Chargers
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About Duracell CEF27 ION SPEED 4000 Hi-Performance Charger
Overall Feedback:
72% positive
66% praised for its fast charging speed, but 34% found it slow
The charging speed is not rapid and it takes about 3 hours to recharge, which is fine for me as I use it for Xbox One Wireless Controllers.
I compared this charger with my previous Duracell rapid charger and found that it takes about 1 hour to charge batteries, whereas the previous one could do it in just 15 minutes.
After buying a new charger, I found that two of my batteries didn't charge, even though the charger always told me they were fully charged.
After charging the batteries, the controllers show a charge of 50% or less and the batteries drain faster than normal single use AAs.
67% appreciated its compatibility with multiple devices, although 33% found it incompatible with certain brands
The charger only supports charging all four batteries at the same time, or two batteries at the same time only, which is the only major downside of the charger.
I faced compatibility issues with the batteries being too long and the contacts not closing, causing the flashlight to not turn on.
I suggest that these chargers are suitable for devices that do not require continuous charging, like a TV remote, but not for those that do.
65% found it easy to operate, but 35% had difficulties
I suggest that the battery manufacturer should design the exterior to make it more distinguishable from regular disposable batteries.
My battery's capability is low and I have to recharge it all the time.
I noticed that the clock started losing about 10 minutes of time per week around August. This could be due to the battery charger not working properly or the battery life of the clock.
The clock started losing about 10 minutes per week around August, possibly due to a faulty battery charger or battery life.
Even then, I have to check the manual to see where the correct placement is for charging only two batteries.
63% liked the built-in safety features, while 37% experienced issues with faulty charging
I suggest that the manufacturer designs the battery's exterior to make it more distinguishable from regular disposable batteries to avoid accidental disposal.
If someone else changes the batteries, they may just throw them away, indicating a lack of safety feature.
