Scorpion Anti Spark DIY kit for 2S to 16S battery systems. It will help you in any case of spark issues.
The set includes a PTC resettable fuse which will avoid sparks during connecting your battery.
A detailed manual of how to install it is included, or can be downloaded from the Scorpion website, here: http://www.scorpionsystem.com/files/download/AntiSparkDIYkit.pdf.
PTC resettable fuse x 1
Plastic tube x 1
Heat Shrink tube x 1
Weight including packaging: 19g