for zippy yes it is normal sometimes. sometimes measurements are off as my volmeter was going crazy but LBA10 balanced the pack in less then 15 minutes.
Radek
V4 D8 - RX8, XERUN 4168SD
F1-09 - Tekin RS Pro, 17.5t Redline, 2S LiPo
Sakura Zero S - LRP, Saturn 20T, 2S LiPo
*EX-10 Eurus*