one cell battery tester - RC Groups
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Feb 04, 2013, 12:27 PM
When pigs fly rc
rcrich's Avatar
Help!

one cell battery tester


Hi guys
What do you use to check the one cell batterys for parkzone micros to see what level of a charge they have?
Rich
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Feb 04, 2013, 12:44 PM
Registered User
pohlmeyr's Avatar
http://www.hobbyking.com/hobbyking/s...l_checker.html

I use one of these with an appropriate adapter depending on the battery. It is pretty accurate for a go no go decision.
Feb 04, 2013, 03:17 PM
Quad Erat Demonstrandum
scousethief's Avatar
for 1 cell i use a cheapo multimeter.
Feb 04, 2013, 06:48 PM
Registered User
Ginohio's Avatar
Quote:
Originally Posted by pohlmeyr
http://www.hobbyking.com/hobbyking/s...l_checker.html

I use one of these with an appropriate adapter depending on the battery. It is pretty accurate for a go no go decision.
I have one similar to this but don't have an adapter for the 1s lipo did you get your adapter from hobby king?
Feb 04, 2013, 06:59 PM
Registered User
pohlmeyr's Avatar
no i just soldered one together for the 1s batteries
Feb 04, 2013, 07:14 PM
An Ordinary User
Quote:
Originally Posted by pohlmeyr
http://www.hobbyking.com/hobbyking/s...l_checker.html

I use one of these with an appropriate adapter depending on the battery. It is pretty accurate for a go no go decision.
Me too.
To make get a 2S balance extender and a UM battery connector (or a bag of 10 pico extenders from HK).

Cut the wires so that you have a battery connector that mates the UM battery and a 2S balance plug that mates with the battery tester.

Cut off the red wire from the 2S balance lead.

Solder black wires together and cover with heat shrink.

Solder the (white on mine) positive wire of the battery connector to the center wire (green on mine) of the balance lead and cover with heat shrink.

Connect to tester as usual, negative (black wire) on pin 1.

The tester must be able to check voltage for 1S though. Only half of the ones I've come across will check 1S. If it says it supports 2S-6S don't be surprised if it doesn't work.
Feb 04, 2013, 07:30 PM
Registered User
Ginohio's Avatar
Quote:
Originally Posted by GooberSB
Me too.
To make get a 2S balance extender and a UM battery connector (or a bag of 10 pico extenders from HK).

Cut the wires so that you have a battery connector that mates the UM battery and a 2S balance plug that mates with the battery tester.

Cut off the red wire from the 2S balance lead.

Solder black wires together and cover with heat shrink.

Solder the (white on mine) positive wire of the battery connector to the center wire (green on mine) of the balance lead and cover with heat shrink.

Connect to tester as usual, negative (black wire) on pin 1.

The tester must be able to check voltage for 1S though. Only half of the ones I've come across will check 1S. If it says it supports 2S-6S don't be surprised if it doesn't work.
I just looked I have extra battery connector and bad 2s battery so I could use that lead. Then looked an my tester says 2s-6s uggh.. I still gonna try it if nothing else some more soldering experience.. Thanks for the help guys. If mine doesn't work I will grab a 1S not like another one going to break the bank.
Feb 04, 2013, 07:40 PM
An Ordinary User
Be sure to cut the balance lead one wire at a time. The shock wouldn't hurt but if it catches fire you have a bigger problem.
Feb 04, 2013, 08:24 PM
Registered User
Ginohio's Avatar
Quote:
Originally Posted by GooberSB
Be sure to cut the balance lead one wire at a time. The shock wouldn't hurt but if it catches fire you have a bigger problem.
Thanks for the heads up!
Feb 04, 2013, 09:08 PM
Registered User
Quote:
Originally Posted by GooberSB
................ The shock wouldn't hurt but if it catches fire you have a bigger problem.
Shock??? You won't get a shock from a one cell LiPo!! Now, a 10s LiPo pack will cause a tingle...... (37 volts, which in the EU is considered a lethal voltage).. But thankfully, we in the US are a lot smarter. No one ever heard of anyone getting electrocuted from a LiPo pack. But wait as the herd thins............................
Feb 05, 2013, 08:19 AM
Registered User
Most cheap testers won't work on less than 2S....but you can always just add two connectors and test two batteries at a time. That's what I do .

Steve
Feb 05, 2013, 11:29 AM
An Ordinary User
Quote:
Originally Posted by slipstick
Most cheap testers won't work on less than 2S....but you can always just add two connectors and test two batteries at a time. That's what I do .

Steve
Yes, this one costs a little more (it's $5) http://www.hobbyking.com/hobbyking/s...ker_Alarm.html

I have one and use it sometimes. The alarm is so darn loud though,.


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