![Coolest Cooler Teardown @Coolest_Cooler « Adafruit Industries – Makers, hackers, artists, designers and engineers! Coolest Cooler Teardown @Coolest_Cooler « Adafruit Industries – Makers, hackers, artists, designers and engineers!](https://cdn-blog.adafruit.com/uploads/2018/07/5b4ce2e4821c942eab8500f1_Coolest-Cooler-Teardown_Hero_9919-600x340.jpg)
Coolest Cooler Teardown @Coolest_Cooler « Adafruit Industries – Makers, hackers, artists, designers and engineers!
![Replacement Coolest Cooler Battery Cooler Blender Battery Li-ion 21V 2100mAh : Tools & Home Improvement - Amazon.com Replacement Coolest Cooler Battery Cooler Blender Battery Li-ion 21V 2100mAh : Tools & Home Improvement - Amazon.com](https://m.media-amazon.com/images/I/51pNHqCXw9L._AC_UF1000,1000_QL80_.jpg)
Replacement Coolest Cooler Battery Cooler Blender Battery Li-ion 21V 2100mAh : Tools & Home Improvement - Amazon.com
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Replacement Coolest Cooler Battery Cooler Blender Battery Li-ion 21V 2100mAh Set : Tools & Home Improvement - Amazon.com
![Replacement Coolest Cooler Battery Cooler Blender Battery Li-ion 21v 2100mah - Power Tool Accessories - AliExpress Replacement Coolest Cooler Battery Cooler Blender Battery Li-ion 21v 2100mah - Power Tool Accessories - AliExpress](https://ae01.alicdn.com/kf/S213929b3fe2c49c3aaa44b2ce22092c5D.jpg)
Replacement Coolest Cooler Battery Cooler Blender Battery Li-ion 21v 2100mah - Power Tool Accessories - AliExpress
![Amazon.com: Replacement Coolest Cooler Battery Cooler Blender Battery Li-ion 21V 2100mAh Set : Tools & Home Improvement Amazon.com: Replacement Coolest Cooler Battery Cooler Blender Battery Li-ion 21V 2100mAh Set : Tools & Home Improvement](https://m.media-amazon.com/images/I/41hQo4gXc9L.jpg)
Amazon.com: Replacement Coolest Cooler Battery Cooler Blender Battery Li-ion 21V 2100mAh Set : Tools & Home Improvement
![Coolest cooler battery. Anyone know what the middle clip would be used for in this controller? Would this be to balance the batteries? To me it looks like the control board rusted Coolest cooler battery. Anyone know what the middle clip would be used for in this controller? Would this be to balance the batteries? To me it looks like the control board rusted](https://i.redd.it/kpy4q0s31fc51.jpg)