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Hotronic issue

post #1 of 10
Thread Starter 
I have 4 Hotronic m4 power plus battery packs. They are several years old but probably not of the same vintage. Recently only one will work. I drained all the power off of the three and then recharged for 48 hours using the proper recharger. I can then turn them on and up to power 4 and the lights will stay on for a long period of time, however if I plug them then into my boots they will each immediately turn off

If I turn them off and then plug them into my boots and press the on button and not release it I can power up to the 4 position but I must not release the pressure on the on button or they each will immediately turn off. In other words no matter what I do I cannot get the 3 battery packs to remain on even a second or two when plugged into my boots.

At no time during charging do the lights flash inappropriately.

These packs are my wife's and have only been used 10 times this year and once all of last year.

It seems to me the packs must now be bad but such a strange coincidence that 3 of the 4 would go bad at the same time.

Any thoughts would be appreciated.
post #2 of 10

Get the continuity of the heating element checked.  I have had the wires short out and have replaced a few elements over the years.  I have also had battery packs go bad.

post #3 of 10
Quote:
Originally Posted by tetonpwdrjunkie View Post

Get the continuity of the heating element checked.  I have had the wires short out and have replaced a few elements over the years.  I have also had battery packs go bad.

I think TPJ nailed it. Sounds like a short. I just bought a new element for my new e4 because the wires broke. I'm going to repair the broken one and keep it as a back up. More than likely your issue is on one end or another of the ribbon wire. Mine is under the strain relief on the ribbon wire where it connects to the battery. I have two "open" wires.

Replacement elements are about $20 each (not per set). Lots of folks are sold out this time of year.

As a side note, the wires that broke on mine are pretty much my fault. During installation I forced the connecter through a hole too small and the strain relief cover peeled back. After that it constantly slid out of the way and I never addressed it, hence the break. A simple duct tape repair would have prevented this.

Ken
post #4 of 10

Call the manufacturer up, they are very helpful and have replaced batteries for me before.

 

 802-862-7403

 

support@hotronic.com

 

They're in Vermont.

 

 

btw I gave up on them last year, sold my years of parts, elements, brackets and batteries on ebay and now use chemical toe warmers on top of my toes.  Work great.

post #5 of 10
Quote:
Originally Posted by SkiMangoJazz View Post
 

Call the manufacturer up, they are very helpful and have replaced batteries for me before.

 

 802-862-7403

 

support@hotronic.com

 

They're in Vermont.

 

 

btw I gave up on them last year, sold my years of parts, elements, brackets and batteries on ebay and now use chemical toe warmers on top of my toes.  Work great.

 

There is no way that there is room in my boot for chemical warmers.  I suspect that if there is in yours that it's too big.

post #6 of 10
Not true TPj they sit on top of my toes my boots are extremely tight
post #7 of 10
Quote:
Originally Posted by SkiMangoJazz View Post

Not true TPj they sit on top of my toes my boots are extremely tight


Interested. I have Thermic in all my boots, but the company's (sort of) gone belly up, so while I have some spares around, I worry that one day I'll be out.

 

I have Intuitions in all my boots, and the toe box was made large when we molded them - if someday I have to go the chemical route, I probably have enough room, but how long do they last during the day?

post #8 of 10
I have intuitions too. They seem to last long enough for me. I also put duct tape across the overlap to keep the air out
post #9 of 10
Thread Starter 
Thanks all for information. When you say the element are you talking about the wire system it self that connects the boot to battery pack? I know that is ok because the one battery pack that works does not turn off when I plug it to either boot.
post #10 of 10
Quote:
Originally Posted by Rober View Post
Thanks all for information. When you say the element are you talking about the wire system it self that connects the boot to battery pack? I know that is ok because the one battery pack that works does not turn off when I plug it to either boot.

 

Yup.  This thing.  My issue is at the end that plugs into the battery pack.  On the actual element (green piece) there is a component I'm guessing has to do with the temperature setting.

2014 Hotronic Footwarmer Power Plus e4: Heat Element (each): 5212

 

Troubleshooting 101 says that if the problem doesn't follow the unit under test (UUT), it isn't the UUT, so it may very well be your battery packs.  To prove it isn't the element is an easy test that can be done at home if you have a multi meter.  You just need to ring out the wires for continuity.  There is a component on the element to consider too.  I would just compare the readings between the two elements.  Also would call Hotronics as SMJ recommended.

 

I do remember reading somewhere that you need to be careful which element you plug into which battery pack.  You stated they are different vintage so maybe that is coming into play also.

 

Here is the link to Hotronics compatibility chart http://www.hotronic.com/products/fw/fw_compatibility.html

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