Join Date: Jun 2002
Location: Deep in the Shawnee Forest
Bikes: LeMond - Gunnar
It kind of LOOKS waterproof but there's no way to really tell.
Yes, there is no way to tell it remains impervious to moisture when being used.
The reasons, vibration, heat etc. In theory, you might be able to use the battery while it is held under water. But if the cord is wiggled, or if you tap on the battery - things could change.
In my experience- after disassembling a pack - I can see that being water proof is not the issue. If any moisture at all
enters the pack - the terminals and the PCB board become corroded. This happened to my "waterproof" Dinotee pack.
The weak spot is where the power cable enters the pack. However, during use, if any heat develops - one could assume that the seams of the pack will not be perfect as well. After all- in theory - these packs need a vent to expand and contract during charge as well discharging.