I have 2 Glacier 30C 6000mAh 4S 14.8V LiPo Battery, only 4 months old. I do not need ay more. Only use for a few flights. If you buy both you get the Y.
Quality Glacier LiPo batteries are made by a specialized factory that also manufactures packs for well-known premium brands. Glacier batteries are great for sport and 3D pilots, as well as competition drivers.
The following characteristics make Glacier batteries outstand competitors that are sold at lower prices from oversea dealers, or even many name brands sold at higher prices domestically.