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The best feature is it will charge and analyze four AA or AAA batteries at different rates or modes and report the capacity. The first time time you use can be confusing but after a few batteries it comes easy, Four buttons control all functions. If you get in the wrong mode, remove the battery, wait a few seconds and reinsert it and start over. Default it charges if no buttons are pressed. You need to know the charge/ discharge rates your battery can handle and manufacturers capacity for the refresh cycle for best results. Well made, easy to program, and identifies bad batteries. Pros; >It read out the battery capacity, lets you know how good your batteries are. >Lets you choose how fast or slow to charge or discharge the battery, each slot is independent. >Batteries can be charged without overheating, all to common problem in lesser chargers. >Ample air space around AA batteries for air flow, not crowded. Con; >The back light is a bright, it doubles as a night light. Choose a place where the light will not bother you as the refresh cycle is over 24 hours. >Larger than many others, but this allows for better air flow. Read full review
Verified purchase: Yes | Condition: Pre-owned
This device is as smart as you are. With charge and discharge rates entered in your batteries will perform at their very best. Be conservative values you enter to not stress the battery. The instructions will help in determining proper values to enter. Give this device time to do its job and you will be rewarded with great performance of your devices. I purchased 2 of these and they work wonderfully. Mark your batteries with established capacities. You can select batteries of near equal capacity to assemble balanced sets. This helps you and the batteries to get best performance from your devices.
Verified purchase: Yes | Condition: New
The device is well built - solid quality, heavy plastic, feels durable. Large LCD screen with white backlight. Excellent design of battery leads and holders with attention to details - apparently no corners were cut in engineering or production. It's made in Taiwan by Maha Energy corp. The user interface is snappy, responsive, intuitive and well thought out. Did not need to read a manual to immediately start using it. White LCD backlight is a big plus (and is the most costly to implement - great job on that) - backlight distribution is uniform and the right brightness is just right for a typical room. Display view angles are somewhat limited within ~30 degrees, with best angle being when the unit is laying on the desk supported by the "lift rod" (as the manual refers to the support frame on the back of the unit that allows it to be tilted on the table as opposed to laying flat) about 12 inches away from the user. Which is typical usecase I guess. User manual is in a good English, clear instructions with examples and recommendations for the settings in typical scenarios to get started. Even includes a section titled "General Battery Education" that explains the fundamentals of rechargeable batteries use and management. My only regret is that I did not buy it sooner.Read full review
Verified purchase: Yes | Condition: New
Best battery charger I have ever had. It gives full control over how you charge batteries and you can charge/analyse each battery as a seperate entity and program them differently. It is more simple to use than it looks. My old off-the-shelf chargers had damaged some of my rechargeable batteries in the past, but this clever device helped to recover some of them and I can now use batteries I was going to throw away. If you don't mind pushing a few buttons, this is the charger to have. I highly recomend this charger.
Verified purchase: Yes | Condition: New
great charger. it helped me find out that several of my batteries were spent. my only complaint is that it is not designed for D cells. i have to use a different charger for D size batteries.
Verified purchase: Yes | Condition: New