Hotronic Battery Pack E4 2014 1153
Hotronic Battery Pack E4 2012 - The Hotronic Battery Pack E4 is Hotronic's most powerful Battery Pack and the longest lasting. There are four cells in each Battery Pack to ensure that your feet can stay warm up to 21 hours. Four settings allow temperatures to go from 83 degrees up to 144 degrees. . Model Year: 2012, Product ID: 252776.
E4 is the replacement for the previous M4 battery.
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