LEDs above each slot change colors to indicate the current battery level, from red (20% or less) to orange (20% to 80%) to green (80% or more). The Panasonic Eneloop Pro isn’t cheap, but you’re also getting a really nice BQ-CC55 charger, which helps add to the overall value. It also powered a motorized car with light-up LEDS for a whopping nine hours and 40 minutes, just 30 minutes short of the top performer in that category, the HiQuick NiMH AA, which delivered a dismal one-hour-and-40-minute flashlight run time. The Panasonic Eneloop Pro also performed well in my real-world run time tests and powered a flashlight (set to “high” power mode) for two hours and 30 minutes before fading out, the longest of any NiMH battery I tested. All rechargeable NiMH batteries suffer some reduction in capacity over time, so the fact that the Eneloop Pro is a capacity overachiever out of the box bodes well for its ability to deliver the mAh you need down the line, even after many use cycles. After I ran it through three complete charging/discharging cycles, the average capacity was actually higher than the advertised 2,550mAh, coming in at 2,596mAh. Out of all the nickel-metal hydride (NiMH) batteries I tested, the Panasonic Eneloop Pro provides the best combination of high capacity and long run time. Meanwhile, too fast, although great at first, is not sustainable over long periods either.Your CNN account Log in to your CNN account We, as humans, do the same thing!! So, too slow may cause complications. ![]() It stands to reason that as your cells age, the composition changes. As referenced above, the Maha charger has a very high default setting which seems to please its owners just fine. These two settings, regardless of which charger you use, are considered moderately good. Even with this unit, some prefer to set it at 500 mA. With the older La Crosse BC-700, it’s my belief that the 700 mA rate is quite safe, and reasonably quick. Therefore you must consider the possibilities when the internal temperature of the charging batteries gets too high. The chemical composition of a rechargeable battery is not such that it can withstand this type of charging too often. However, having said that, it’s widely known that “fast chargers” tend to ‘bake’ the batteries by applying too high a current, too quickly. Most users of the Maha C9000 (for instance) prefer the default setting and claim it’s been perfectly fine with their Eneloops. ![]() On the other end of the charging spectrum, is a unit in which the default rate is 1000 mA (as in the case of the Maha). ![]() Yes, the charger, whether it’s a La Crosse, Maha, or Nitecore, will usually feature accurate detection methods of knowing when the cell has reached maximum voltage…it MIGHT miss the cue! The Plot Thickens The conflicting information is centered around what occurs after the cells are depleted, prompting the user to recharge them again.Īssuming you’re using a quality charger featuring variable levels of charge current, this is where the plot thickens! First of all, Eneloops (or any rechargeables for that matter) don’t enjoy being overcharged. Unless you enjoy putting your rechargeable batteries through the grinder and replacing them once a year, most users like to treat them kindly hoping that, in return, the batteries will reward them with unflinching service.
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