They are low self-discharge, intended for a light average current draw, achieving a shelf life of several years. With the help of a generous reservoir capacitor (min. 470μF, low leakage suggested), they can handle the current draw from short radio module transmissions at low to medium power settings. Operating temperature range exceeds -10°C to +60°C.
--- Note: Strictly non-rechargable - Safety Hazard! ---
The CR1220 Pack has two x CR1220 size, 36mAh capacity cells. Fits the Standard or Precision Real Time Clocks (not for JeeNode Micro/Zero, use the CR2032 size).
The CR2032 Micro Set has two x CR2032 220mAh capacity cells and one x Low Profile battery holder - solder to the option pads reserved on the back of the JeeNode Micro PCB.
The CR2032 Zero Set has two x CR2032 220mAh capacity cells and one x Low Profile all metal battery holder - solder to the option pads reserved on the JeeNode Zero PCB.
Please dispose of all types of used batteries thoughtfully, preferable at an available re-cycling station.