20 Most Recent Motorola Talkabout T5210 2-Way Radio - Page 8 Questions & Answers

Since the radios are from a yard sale, the batteries are likely bad. Transmit takes a lot of power, likely more than the batts can produce. Assume the batts are good, 1) same channel, as you said: 8. BUT, the same code? You need the channel and code to match. If you transmit on one, is there a blinking indicator or small screen indicator that changes? If so, your radios do work. You need to program them exactly the same.

The RMD has a set frequency list. Those are factory programmed and cannot be changed. Your baofeng can be reprogrammed to most frequencies. Critical! First, make certain both are in the same band: Uhf or Vhf. Make the list of frequencies you need both radios to use. If the RDM has it in the list, you are good to go! If it does not, and you must match the Bao, get a new radio. There are no mods or hacks for an RDM.

Could you be more specific? I have lots of desk chargers, are you asking for that or a mobile charger? Chargers are so cheap, I never made one.

battery, charger or charging port. No repair.

No idea, here is the pdf, for free! http://www.motorola.com/mdirect/manuals/BTCarKit_User_Manual_E.pdf

This is radio communication category, not Bluetooth. That said, your battery or charging port is bad. For more answers, please repost in cellular.

Assuming both are Uhf radios: http://www.batlabs.com/gp2000.html

Battery is shorted. You need a new one.

Batteries. Even on the charger, a shorted battery will cause this. Chargers do not have enough power to allow a radio to transmit.

Your radio is liquid damaged and is not economical to repair. Sorry for the bad news, happens all of the time http://forums.radioreference.com/motorola-forum/187778-radius-cp200-orange-amber-light.html

http://audio.manualsonline.com/manuals/mfg/motorola/h700_1.html