I Tested Cr123 Rechargeable Batteries: Honest Review, Real Results, and What I Discovered

These batteries excel because they offer a predictable power supply for those who rarely need a replacement. They provide a stable voltage curve that keeps simple electronics running without the fuss of complex charging setups.

In my view, the smaller pack size is a smart move if you only have one or two devices. You avoid the clutter of a massive pile of spares while ensuring you have fresh cells ready in the junk drawer. A limitation is the higher cost per unit compared to larger bulk packs.

This is the top recommendation for anyone operating Arlo camera systems. Because these cameras demand a specific discharge rate, these batteries provide the consistent current required to prevent frequent, annoying battery-low alerts.

I believe this balance of capacity and compatibility makes them the most practical choice on this list. While they are a premium option, the reduction in maintenance time is worth it. Just be aware that they perform best when kept at moderate temperatures.

An interesting feature here is the 10-year shelf life, which acts like an insurance policy for your gear. You can stow these away for years and rely on them when the power grid fails or a battery finally dies.

I find this size to be the sweet spot for a typical home toolkit. It covers the majority of your devices without leaving you with a dozen loose batteries rolling around. They are not intended for Arlo cameras, which is a major constraint you should keep in mind.

A common buyer complaint is that the capacity feels lower than advertised when used in demanding devices. While they are not the longest-lasting cells, they remain a cost-effective solution for someone with a high volume of smart home sensors.

I’d suggest these only if you have many low-drain devices that need power simultaneously. If you try to use them in high-intensity cameras, you will likely find yourself swapping them out far too often. They are a volume play, not a high-performance one.

Compared to the 24-pack above, these provide a slightly higher 1700mAh capacity that is better suited for specialized equipment. They act like a reliable fuel source for older film cameras or high-output tactical lights that need that extra kick.

I think these are a solid alternative if you need specific power delivery for optics. However, they lack the brand recognition of the Amazon options, which makes some buyers hesitant. They occupy a middle ground that serves niche photography needs well.