Abu_Firas50
New
When I replaced my sunnto tank pod battery, the transmitter didn’t work. I have checked the
battery voltage and the reading was 3.67 v (brand new battery) I had set of 3 battery, I have tried
all of them and still the transmitter is not working. So I thought the transmitter was
malfunctioned . Then I connect the transmitter to DC power supply and it work. So, I knew the
problem was with the battery. So, I did some research and found that, the best way to confirm
and test a battery when it’s under load. The usual rule is to connect the battery to a resistor that
will put a load on battery suitable to discharge in 10-20 hours. My battery type is LS 14250 3.6v ,
the Capacity 1200 mAh. So, you need 73 ohm resistor to discharge the battery in 24 hours. If the
battery is okay it should read more than 3 volt (using ohm's law). When I test the battery under load, the reading
was 2.2 volt (dead battery).
Then I bought a new battery and replace it, now the transmitter is working fine.
The lesson learned is, Not all new battery are good.
If you want to make sure 100% that your battery is okay test it under load.
As per the manufacturer recommendation (suunto pod tank transmitter) once you open the
transmitter cover, you have to replace it with new (cover and o’ring), that’s why you have to
test your battery before boxing up.
Then I bought cheap battery tester, adjustable resistor and banana plug jack socket from
AliExpress, it cost me around 7$
With some modification and soldering, I made a battery tester with adjustable resistor built in.
Below are some battery test details for your reference :
Regards,
battery voltage and the reading was 3.67 v (brand new battery) I had set of 3 battery, I have tried
all of them and still the transmitter is not working. So I thought the transmitter was
malfunctioned . Then I connect the transmitter to DC power supply and it work. So, I knew the
problem was with the battery. So, I did some research and found that, the best way to confirm
and test a battery when it’s under load. The usual rule is to connect the battery to a resistor that
will put a load on battery suitable to discharge in 10-20 hours. My battery type is LS 14250 3.6v ,
the Capacity 1200 mAh. So, you need 73 ohm resistor to discharge the battery in 24 hours. If the
battery is okay it should read more than 3 volt (using ohm's law). When I test the battery under load, the reading
was 2.2 volt (dead battery).
Then I bought a new battery and replace it, now the transmitter is working fine.
The lesson learned is, Not all new battery are good.
If you want to make sure 100% that your battery is okay test it under load.
As per the manufacturer recommendation (suunto pod tank transmitter) once you open the
transmitter cover, you have to replace it with new (cover and o’ring), that’s why you have to
test your battery before boxing up.
Then I bought cheap battery tester, adjustable resistor and banana plug jack socket from
AliExpress, it cost me around 7$
With some modification and soldering, I made a battery tester with adjustable resistor built in.
Below are some battery test details for your reference :
Regards,