Part of our Handheld Radios (HTs) guide.
The battery that came with your handheld isn’t necessarily the best long-term option, and the choice between OEM packs, AA cases, and rechargeable cells matters more over a few years of ownership than it seems like it should on day one.
OEM Li-ion packs: best capacity, worst longevity
The lithium-ion pack that ships with most modern HTs offers the best energy density and the most compact form factor, genuinely the right choice for day-to-day use. The catch is that Li-ion cells degrade over time regardless of how carefully you treat them, and a pack that’s a few years old, especially one that’s spent a lot of time sitting at full charge, will hold noticeably less capacity than it did new. Cheap aftermarket replacement packs are hit or miss on quality, so I’d stick with genuine OEM replacements when the original finally degrades too far.
AA battery cases: the reliable fallback
Many HTs offer an optional AA battery case as an alternative to the Li-ion pack, trading some capacity and bulk for the ability to swap in fresh batteries from literally any convenience store on the planet. For emergency preparedness specifically, this is a genuinely valuable option, since it means your radio can keep running as long as you can find AA batteries, without depending on a charger or grid power at all.
Eneloops: the best of both worlds for the AA case
If you’re running an AA case, quality rechargeable NiMH cells, Eneloops in particular, are worth the investment over standard alkaline batteries. Eneloops hold their charge for months in storage far better than most rechargeable NiMH cells, handle hundreds of charge cycles, and give you rechargeable convenience without sacrificing much of the shelf-stability that makes AA cases attractive for emergency use in the first place. I keep a set of charged Eneloops in my go-bag specifically because they combine the reliability of AA with genuinely reasonable long-term cost compared to constantly buying alkalines.
Related reading: Essential HT Accessories · Programming Cables Compared