[GCARC] Don't charge your TidRadio H3 with the charging dock with the radio attached

Fri Aug 1 16:36:12 EDT 2025

I have three of these radios, and all of them have been charged in the
cradle as assemblies, with the battery attached to the radio.  None of mine
are exhibiting this problem.  I may, however, suggest that the problem
might be occurring if the radio is placed in the cradle with the radio
switched on,  but that is only a guess, as I cannot substantiate it as all
of my radios work properly.

The problem could also be related to a failed charge control circuit in
certain copies of the charging cradle.  Many of these cradles use a MOSFET
in the control circuit, which often has one of its leads tied to one of the
contacts on the cradle, and as such they are subject to static discharge
damage if touched.  That would *not *seem likely to be the issue with these
TID cradles, as they are only two-contact cradles, but I mention it here
just to put the warning out there.  That is a known condition with, for
example, certain versions of the Yaesu CD-41 charging cradle.

I believe, however, that Jon's sage advice is best -- charge the battery by
itself at least until we get some more information or some resolution to
this issue.

73 de

-- Chris   AD2CS
*GCARC VE Team Liaison*
*GCARC Education Committee Chair*
*GCARC Membership Committee Chair*
*Member, GCARC Board of Directors*
------------------------------------------------------------
Christopher P Prioli
648 W Holly Ave
Pitman, NJ  08071
1-856-689-6783
www.ad2cs.com

On Fri, Aug 1, 2025 at 11:43 AM Jon Pearce <jonathanwpearce at outlook.com>
wrote:

> Some members have purchased the TidRadio H3 in advance of the Tech
> Saturday session on August 9 but Stan WA2JRZ had an issue that warrants a
> warning about charging that radio's battery in the charging dock with the
> radio attached. Stan found that his radio had stopped transmitting after
> doing that and found several online reports suggesting that the battery
> doesn't limit voltage to the attached radio when in that dock, causing the
> radio to fail. Stan noted that the radio was failing to put out power (as
> measured by a wattmeter) even though the LCD panel indicated that it was
> transmitting.
>
> The alternative recommendations are (a) charge the battery in the dock
> WITHOUT the radio attached, or (b) use the USB-C cable to charge the
> battery.  A video describing this issue is here: I Will NEVER Do This Again
> | Tidradio TD-H3<https://www.youtube.com/watch?v=-sJYgeC-BvQ>
>
> Hopefully no other members will have this unfortunate result, and thanks
> for Stan for making us aware of it. Hopefully we'll have a good turnout on
> Tech Saturday on August 9 for a larger discussion about this radio.
>
> 73 de Jon WB2MNF
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