Question about Midland Alan 42 DS

For your walkie-talkie, you can use NiMH-type rechargeable batteries, which are specified as the standard battery type for this model. However, there is also a 2800 mAh rechargeable lithium battery pack, such as the Midland PB42 Lithium, which offers greater capacity and twice the life cycle of standard 1800 mAh rechargeable AA batteries.