It's not a good sign. It's expected.

NiMH cells rebound in the direction opposite the last operation and eventually settle on a static voltage. From here they will slowly lose voltage as they lose charge over time.

Discharge pulls down voltage, but voltage will rise when discharge is stopped. The level typically peaks about 10 hours after load is removed.

Conversely, charging raises voltage. When charging is removed, voltage decreases over time until it settles about 10 hours after charge is removed.

 

Got it. I'll hop to work getting the hv battery cover off and order a charger.

 

I just picked up this one...

https://www.mouser.com/ProductDetail...LG-480H-C1400A

1.4A at up to 343V. My goal is to get it juiced pretty quickly.

I'm not recommending that per se, but I'm looking forward to using it on the next one. My prior supply was only able to hit about 0.9A.

To be clear the 350mA units work just fine.

 

I'll stick with the 350mah one, ⅓ the price and hoping to only need it once. Saw in the comments of one video that you can hook the charger to the leftover cables from the charging system they removed in the 09+ models. Know anything about that?

 

Yes. I'm guessing you haven't seen the HV jump thread some schmuck posted?

It's described in the post. You can even install the power supply in the empty space and fish out an AC power cord, so you only need to plug it into an extension cord.

 

Gotcha. I'll go read through your post. Seems you've had quite a few encounters with these cars 😂

 

Yep... 6.5 years and counting. I'm now doing mobile jump starts.

 

Man, that sounds like a pretty good business. Any tips on getting the battery tilted for those torx screws?

 

It's pretty tedious at this point. After dozens, I just hate Ford at this point.

Link in the first post to this guy's post with the low profile torx kit:

https://electricvehicleforums.com/fo...tml#post270783

Works great for the small screws. Not robust enough to use on the big bolts with the lifting straps. I just mangle those with vise grips.

 

I got em out, thank you. Any additional thoughts on why the engine was still turning over at ~290v?
Additionally, do I need to disconnect computer and relay to hook charger up to the old jump start cable?