According to the product page on Latestbuy, the charger will charge not just alkaline batteries, but also NiMH and NiCd batteries too. It uses a microprocessor to control the alkaline recharge, reducing the risk of breakage or chemical leakage, and has a safety timer to cut off the charge when the battery is charged.
You can reportedly get between 10 to 20 recharges from a standard alkaline battery using this charger, unless the battery is completely dead. Which means that the $50 device will pay for itself within the first pack of batteries you recharge.
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