This tiny battery monitor works with 4S (4-cell)
Lithium Polymer (LiPO)
battery packs. Battery status is provided by four sets of LED's.
When the battery voltage on any of the four cells is above 3.3V the green LED for that cell is on. If it is under 3.3V, the red LED is on. There's a red/green pair of LED's for each cell.
Just install the monitor by plugging it into the balance connector on your LiPO pack. As soon as you see any Red LED come on you should recharge the pack. Your LiPO will have much longer life if you charge it before it is less than 3.0 volts per cell.
Specifications:
● Works with 4-cell LiPO battery packs.
● 5-Pin connector installs on charge-balance cable.
● Weight: 3 grams.
● Size: 1.1 x 0.7 x 0.2 inches (27 x 16 x 5 mm).
