Did that come with the kit? I didn't see it in the package, but I thought I heard someone else say it was included.
You can plug it into the balance lead (white plug on the battery) and it will show you the voltage of each cell and total voltage of the pack. This can help you determine when you will need to charge.
That sounds like a very useful tool, and I can also confirm we did not receive one (we did double check). I'm guessing we should contact support to get one? Thanks!
Hey Everyone...We were finding that the battery checker quality was not at a level we were satisfied with so we stopped including them. They are available at online retailers and at most hobby shops for under $10 (USD). Our apologies for the confusion.