How to test power output from battery with multimeter

tezdread

Pedelecer
Oct 31, 2014
59
2
54
Hey,

EDIT: Forgot to say, It's the 36V 15Ah Samsung from woosh. (I called woosh but had to leave a message)

So like a complete arse, I put the battery on my bike but forgot to lock it in place (Grrrr) and then it fell out when I hopped up a curb.

When I put it back in place and locked it, I was (and still am) getting zero power to the LCD.

I have a multimeter I bought a long time ago but don't know what setting I need to use and what the power output should show.

Any ideas?

I've checked all the connections and they seem fine.

Thanks
 
D

Deleted member 4366

Guest
Set the meter to 200v DC. You can test that it's working by measuring an AA cell, which should be 1.5v or your car battery around 12v.

Switch your Woosh battery on and touch your probes to the two outer contacts.
 

tezdread

Pedelecer
Oct 31, 2014
59
2
54
Thanks, tested on an AA battery (rechargeable) output is 1.4
When I test the bike battery, it's 02.3.
This is when I touch the two contacts after separating them from the controller.
 

Alan Quay

Esteemed Pedelecer
Dec 4, 2012
2,351
1,076
Devon
...make sure the leads are in the correct holes (V, not A!) Or you'll have a nice big flash and some smoke.
 

tezdread

Pedelecer
Oct 31, 2014
59
2
54
The USB used to be able to charge my phone but it doesn't now.
When I plugged it into the charger, the chargers red light was on then went to green when fully charged (as normal).
 

tezdread

Pedelecer
Oct 31, 2014
59
2
54
I best not lol the fewer things I do the fewer things I'll mess up :)
Was sending it to woosh in a few weeks for them to check it anyhow, I think I'll send it sooner!
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
19,991
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West Sx RH
There is a 30a external fuse check that if you have dropped the battery.