It's 3 volts. You can use a CR2032 plus a holder from Mouser. For a complete 
procedure, see below.

http://www.qsl.net/wb3gck/htx-202_err1.htm

-- 
Chris AI6U
---
On Wed, May 20, 2015 at 01:26:54PM +1200, Dave Allen wrote:
> Hi all!
> 
> My battery place can do it. Guess they just don't know what the voltage is
> on the lithium battery. Mike, do you know that? 
> 
> Guess it would cost me as much as a UV5R would, but at least I already know
> what the rig will do for that, and wouldn't be fussing with umpteen menues
> that only partially speak, so it's a reasonable expense under the
> circumstances, hi hi.
> 
> 73,
> Dave
> 
> David Allen, Director
> Blind-Sight Limited
> For computer training and support world-wide, equipment or braille
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