Uniden Set of 2 Compact 22 Channel Two-Way Radios Walkie Talkies TR622-2.

The rechargeable batteries need to be replaced. NIMH BP38 are the batteries that need to be replaced. These also work with four (4) AAA batteries. I tested both walkie Talkies with fresh AAA batteries and they both work great. Serial number 895Z34107992

Below is the official description from Uniden.

The Uniden TR-622-2 supports all 22 FRS/GMRS channels and 38 privacy codes. The TR-622-2 has a maximum range of up to 2 miles. It also supports the channel scan feature, and allows you to choose from 5 call tones. Each Uniden TR-622-2 two way radio requires 4 AAA batteries, which are not included.

This value pack includes two Uniden TR-622-2 two way radios, one desktop charger, and NiMH rechargeable batteries for each radio. (Note : you will need to replace the chargeable batteries included with this listing.)

Uniden TR-622-2 Features

• 22 Total Channels

• 2 Mile Range

• 14 FRS Channels

• 8 GMRS Channels

• 38 Privacy Codes

• .5 Watt Output Power

• Uses 4 AAA Batteries or Rechargeable Battery Pack

• 2 NiMH Rechargeable Battery Packs Included (NEED TO BE REPLACED)

• Desktop Charger Included

• 5 Call Tones

• Channel Scan

• Auto Squelch

• Backlit LCD Display

• Battery Strength Meter

• Low Battery Alert

• Battery Saver

• Keypad Lock

• Channel Monitor

• Drop-In Charge Capable

Included with the Uniden TR-622-2

• Two Uniden TR-622-2 Radios

• Two NiMH Battery Packs

• Dual Drop-In Charging Cradle

• Belt Clips