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7. USABLE RECHARGEABLE BATTERY TYPES
Rechargeable battery type LiPo LiIon LiFe NiCd NiMH Pb
Rated voltage (V/cell) 3.7 3.6 3.3 1.2 1.2 2.0
Max. charging voltage (V/cell) 4.2 4.1 3.6 1.5 1.5 2.46
Voltage for storage (V/cell) 3.8 3.7 3.3 - - -
Charging current for quick charge <= 1C <= 1C <= 4C 1C - 2C 1C - 2C <= 0.4C
Min. voltage after discharge (V/cell) 3.0 - 3.3 2.9 - 3.2 2.6 - 2.9 0.1 - 1.1 0.1 - 1.1 1.8
The voltages in the above table apply to a single cell.
The max. charging and discharging currents are indicated with the capacity value "C".
A charging current of 1C corresponds to the capacity value imprinted on the battery (e.g. indicated battery
capacity 1000 mAh, max. charging current 1000 mA = 1 A).
Also observe the correct voltage setting for multi-cell battery packs. For example, the individual cells in a
two-cell battery pack may be switched in parallel or in series.
If the maximum permissible charging current for the rechargeable battery is exceeded or a wrong cell
number/voltage setting is chosen, there is a danger of destroying the rechargeable battery. There also is
a danger of re and explosion from the rechargeable battery!
Further notes on the max. charging current and the cell number/voltage can be taken from the data
sheets or the labels of the rechargeable batteries; these data take precedence over the information in the
above table.
Important!
• Never charge battery packs made up of different cells (or cells from different manufacturers).
• Never charge non-rechargeable batteries.
• Never charge rechargeable batteries not listed in the above table.
• Never charge rechargeable batteries with integrated electronics.
• Never charge rechargeable batteries that are still connected to other devices (e.g. a speed controller).
• Never charge any damaged or bloated rechargeable batteries.
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