Troy-Bilt 650 Series Mower

Brandi

Member
Joined
Jun 11, 2022
Threads
9
Messages
20
Hello, I just rehabbed a Troy-Bilt 650 series FWD electric start mower and I'm very happy with the results so far. I put in a new battery and bought a used plug in charger off of EBAY. My question is, since there are no lights etc., is there a way I can actually know if the charger is actually doing it's job (i.e actually charging.) Thanks in advance.
 

Rivets

Lawn Royalty
Joined
Mar 11, 2012
Threads
55
Messages
14,681
Very simple. Take a voltage reading on the battery, let’s say you get 11.4 VDC. Now attach the charger and plug in. Take a second reading while the charger is plugged in. If you get a reading of 12.6 VDC or higher your charger is working. If the voltage reading is over 14 VDC the charger is over charging l
 

Brandi

Member
Joined
Jun 11, 2022
Threads
9
Messages
20
Thank you for your fast and informative response. I'll give that a try. The part # was somewhat confusing & I'm hoping I got the right one.
 

Brandi

Member
Joined
Jun 11, 2022
Threads
9
Messages
20
Regarding my previous post, if I have 12 volts showing on my meter, and the mower starts effortlessly with the pull start, when trying the e-start, it cranks but will not turn the motor over. Thanks in advance.
 

Rivets

Lawn Royalty
Joined
Mar 11, 2012
Threads
55
Messages
14,681
You asked how to test the charger, didn’t you? That’s why I posted what I did. Your unit may show 12VDC, but did you check battery voltage while cranking?
 

Brandi

Member
Joined
Jun 11, 2022
Threads
9
Messages
20
Yes I'm sorry I did that...I think because the battery is so new, I can't really tell if it is charging....12.5 without the charge...11.5 with the charger. 12v before cranking, down to 2-3 while cranking.
 

Rivets

Lawn Royalty
Joined
Mar 11, 2012
Threads
55
Messages
14,681
If you are dropping that far either you have a bad battery or your charger is not working.
 
Top