(work in progress)

POWER PLANNING TOOL

Battery life calculator

Model a typical 24-hour operating cycle and estimate how long your battery will last.

Li-ion 18650 cellTypical cylindrical rechargeable cell · illustration only
Circuit cut-off voltage (pack voltage)
Preset data is indicative. Capacity, voltage cutoffs and self-discharge vary by manufacturer, model, temperature, load and age. Check the exact cell datasheet and edit the values above. Series increases voltage; parallel increases capacity. Circuit cut-off values are pack-level voltages. The effective-capacity estimate uses the overlap of the battery voltage range and the usable input range for the selected conditioning type.
Pack capacity3,000 mAh
Effective capacity2,550 mAh
Pack voltage range2.50–4.20 V
Power conditioning
Effective capacity is estimated from pack capacity, voltage limits and usable-capacity allowance.
Battery Life Calculator · Tinkerbee Innovations