62T not charging

harrymank

harrymank

Location
colorado
Searched endlessly without a solution.

Superjet with 62t not charging
Good used stator—mine was only putting out 5.3v a/c when cranking which I thought was supposed to be at least 6, new does the same
Brand new regulator— old regulator tested 2-3 megaohms from black to red or green, new is 3k ohms
Cleaned all battery cable ends and grounds in ebox
No evidence of water in stator or ebox
Need help, haven’t gotten a rubber chicken yet to chase the gremlins off.
Readings taken with good Fluke meter
B136E00D-4243-4104-9CA9-77BD62F00E4F.jpeg
 
augustaf

augustaf

Location
central florida
And you promise that the red wire from the regulator/rect. not just connects to the red for the h/pole switch, but also via that little jumper to the fuse- which then can feed the battery.
 
Harbor

Harbor

Location
Stockton
I see on your list it says batt voltage running is 12.4, is this why you say it's not charging or is there some symptoms ?

Reason I ask is, I got fooled once by that 12.4v on a ski I just installed an enhancer in. I wanted to verify it was charging before buttoned up the ebox.
Tested another ski and it was the same, but I've seen higher voltages on ski's ran on trailer in water. These were garage stand test, figured it just hadn't ran long enough to start or need charging, I could only run a few seconds.

That's all I wanted to mention
 
OCD Solutions

OCD Solutions

Original, Clean and Dependable Solutions
Location
Rentz, GA
I've had batteries fail and just not ever take or hold a charge. They read full voltage but yet drop to nothing when a load is applied.

What symptoms are you chasing anyways? More detail holds more clues.

Slow to crank? Won't crank after running? Cranks and runs on a fresh battery but only runs until the battery dies?
 
harrymank

harrymank

Location
colorado
Red wire from the regulator is connected to the correct bullet plug in the ebox

My battery voltage was 12.5 static and when running at idle was only 12.4 which is not charging properly.

Bought the ski recently, I’ve had it out five times and it ran great all but the last. I put battery tenders on my skis when they get back to the garage so I’m not sure if I bought it with this problem. The last time out my lanyard switch was causing the engine to die randomly and after starting the ski quit a few times the battery started becoming weaker. After I got home i grabbed my meter to find out that it’s not charging any more than voltage of the battery. It’s a new Interstate battery and had the battery out of my other ski in it with no raise in voltage when running either.

The ski starts and runs great, I’ve got my carbs dialed in but am basically running total loss and not by choice. Since it was starting so well on all the previous trips to the lake and I had it on a battery tender as soon as it got home I’m again not sure if I bought it like this.
 
Harbor

Harbor

Location
Stockton
As I remember a little more, on the garage test I spoke of, if I raised the engine speed to 3 or 4K, I only saw an increase from 12.4 to 12.5 or 12.6 fir the brief time I ran it.. was nothing wrong with this ski.. readings made me think there was... I had planned to test further but never got around to it. My initial testing, The way I did it etc etc was inconclusive and in my option done in a way that didn't show the charging voltage correctly..
 
harrymank

harrymank

Location
colorado
I may just throw it back together and run it tomorrow, I’d just like to see even half a volt above static voltage, doesn’t make me very confident in taking the ski across the lake otherwise.
 
Harbor

Harbor

Location
Stockton
Ok, I have charging system in my ski right now, normally run TL... so I have a 13.4 volt lithium battery mind you so voltage will appear higher, just note the difference engine off to running ok..

So I tested it just now for you.

Engine off 13.4
Engine on @idle 13.2
Engine on and snap throttle 13.2

Please not it on a stand with no water so couldn't run long again or play with higher engines speeds for any length of time. Charging voltage again did not show fir me either just like I mentioned. This method is inconclusive incorrect doesn't show the charging system cycling voltages..

I think your fine, minuse a battery test and fixing that lanyard switch issue you mentioned
 
Last edited:
harrymank

harrymank

Location
colorado
Maybe I’m just worried too much but it ran my battery low over the course of an hour and a half. The manual says 14.3-15.3 for charging voltage but I understand that in reality it may not be that high. I don’t like that I’m only getting 4 volts on the red wire coming from the regulator but don’t have another superjet to compare to.

I got the lanyard switch cleaned and working.
 
augustaf

augustaf

Location
central florida
harrymank said:
If I unplug the red wire at the regulator and check voltage I get 3.5-4 volts while running
Click to expand...
Duh.... when you unplug that wire the regulator no longer senses bat voltage- there is nothing there to regulate! It's also a bit hard on the rectifier diodes in that unit.
The lighting coil can only put out about 2.5 A at high rpm, very little at idle. Charging voltage can only approach 14.5 with a reasonably charged, good battery, a reasonable rpm and sufficient time to have raised the amount of charge in that battery after cranking.
 
Harbor

Harbor

Location
Stockton
Something that might help OP, after you put it together and right before you ride Saturday, take a battery voltage reading with engine off, ride as you normally would, after your done for the day, take another engine off battery voltage reading, if both readings are near the same, it charging
 
You must log in or register to reply here.
Top Bottom