You may have a bad cell in your Eneloops. Try monitoring the current
drain while discharging the battery. At idle, it should be200 mA or
less. If it's much more than that, there may be a different problem
with the KX3 itself. But I'd guess you're looking for a single bad
cells in the bunch.
After a load is removed, most types of batteries recover to a much
higher open-circuit voltage. The internal resistance doesn't add
voltage drop without the load present.
There are instruments out there that assess battery health. Can you get
access to one? I believe MFJ makes one...
73,
matt W6NIA
On 4/10/2017 7:00 AM, Anthony de Maillet wrote:
Hi,
I have a new (last week) KX3 built by Waters and Stanton in the UK. It has all
the extras other than the 2m/4m Transverter. I have installed a fully charged
and new set of Eneloop 1900mah NiMH batteries. If I trun the radio on the
battery voltage drops from 10.9 volts to 7.9 volts over about 2 minutes then
the radio switches off. If I plug in the external power (13.6 Volts) the
battery voltage inceases back up to about 10.7 volts - again over about 2
minutes. Presumeably the batteries are recovering? The Batt Chg in the menu is
OFF at this point.
Any ideas? Radio issue, Battery issue or normal behaviour? I’m wasn’t
intending running from internal batteries except in an emergency. Pre amp, NB,
NR etc. all off. Backlight is on though. I’m a bit puzzled.
Tony
M0ZZA
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"A delay is better than a disaster."
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Matt Zilmer, W6NIA
[Shiraz]
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