The Best C-Size Rechargeable Batteries Of 2015


In A Nutshell

Currently, the best rechargeable C-size batteries are made by SunLabz. These batteries are low self-discharge NiMH (Nickel Metal-Hydride) cells, and they have a high capacity of 5000 mAhs (milliamp hours).

The Details

Rechargeable batteries have made some real improvements in the last five years. Most notably, you can now get rechargeables that don’t go flat after a couple of months! The technology is called “low self-discharge” and means rechargeable batteries can hold 80% of their charge for a year. Low self-discharge batteries (LSD) NiMH cells were first introduced by Sanyo in their Eneloop AA cells in November 2005. Since then, other battery manufacturers have adopted this technology. Then in 2010, companies like Accupower and Maha started releasing LSD NiMH cells in C and D sizes.

An alkaline C cell is typically rated for about 8000 mAh, but only at a very low current (around 30 mA). When used at a load of 500 mA (such as flashlight), the capacity of an alkaline drops to about half. Basically, the advantage that alkaline cells have over NiHM cells, is that they have a shelf life of about 10 years, with minimal self-discharge.

We recommend the SunLabz cells, which are available from Amazon. A set of four cells costs around $17.

Comments 2

  1. Mac

    The AccuEvolution C cells are not for sale on amazon anymore.

    The SunLabz C Rechargeable Batteries NiMH 5000mAh are on amazon.

    What are your thoughts on those?

    1. web master

      The SunLabz cells get great reviews on Amazon and 5000mAh is an improvement on the capacity of the AccuEvolution cells.

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