I have quite a large collection of NiMH rechargeable batteries and some are over 20 years old and still work!
I use AA NiMH batteries in my trail camera even though the instructions specifically say not to. They actually work but at 1.2V instead of 1.5V for alkalines, they are shown as running out of capacity right from the start, even fully-recharged.
I've had the trail cam running for about 10 days and it continues to work on NiMh batteries during that time. Stills are fine, but I'm finding the reliability of the video clip recording, shot immediately after the still, is problematical, I think this is because the low voltage tricks the camera into abandoning the recording early. So clips are normally 30 seconds to start with, but get shorter and shorter over time. This is, I'm sure, why the trail cam manufacturer recommends not to use rechargeables. Fortunately, I'm more interested in the stills, generally.
It recently struck me that as you can get 1.5V lithium ion rechargeable batteries, these might be better. Lithium ion batteries produce a native 3.7V but they have an integrated converter to reduce the voltage to 1.5V. They usually need a special charger, or they have USB ports in them for direct charging from a USB power source.
On paper, they don't offer much better charge capacity than NiMH, but they produce a more normal 1.5V, and power is maintained until the battery minimum charge safety switches the battery off (lithium ion batteries don't like being over-discharged).
To cut a long story short - does anyone use lithium ion rechargeable AA (or AAA) batteries, and what about their use in trail cameras? I've heard they aren't suitable for flash guns.
Ian
I use AA NiMH batteries in my trail camera even though the instructions specifically say not to. They actually work but at 1.2V instead of 1.5V for alkalines, they are shown as running out of capacity right from the start, even fully-recharged.
I've had the trail cam running for about 10 days and it continues to work on NiMh batteries during that time. Stills are fine, but I'm finding the reliability of the video clip recording, shot immediately after the still, is problematical, I think this is because the low voltage tricks the camera into abandoning the recording early. So clips are normally 30 seconds to start with, but get shorter and shorter over time. This is, I'm sure, why the trail cam manufacturer recommends not to use rechargeables. Fortunately, I'm more interested in the stills, generally.
It recently struck me that as you can get 1.5V lithium ion rechargeable batteries, these might be better. Lithium ion batteries produce a native 3.7V but they have an integrated converter to reduce the voltage to 1.5V. They usually need a special charger, or they have USB ports in them for direct charging from a USB power source.
On paper, they don't offer much better charge capacity than NiMH, but they produce a more normal 1.5V, and power is maintained until the battery minimum charge safety switches the battery off (lithium ion batteries don't like being over-discharged).
To cut a long story short - does anyone use lithium ion rechargeable AA (or AAA) batteries, and what about their use in trail cameras? I've heard they aren't suitable for flash guns.
Ian

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