How To Store 1s Lipo Batteries. From what I found briefly researching that charger your only option is to babysit and manually stop it or get a different charger that can do a storage charge. What Does 4S LiPo Battery Mean.

Please charge and store the batteries in an appropriate environment. All batteries MUST be the same capacity but not necessarily the same cell count. Never discharge a LiPo battery below 30v per cell.
These models all support 2S but since many people already own 1S Lipos they added an extra PH20 battery connector there for you to connect two 1S batteries at the same time.
You can use fireproof safes empty ammo boxes and ceramic flower pots. Charging a LiPo battery to full capacity should be fine as long as you use or discharge it within 2 or 3. There are plenty that will do it I use a Hitec RDX1 with a parallel cable to charge storage charge my four 1S batteries. Typically a full charge is 42v per cell.
