User manual
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18. Display of the internal resistance
The charger can display the internal resistance of the connected rechargeable battery.
For multiple-cell Lithium rechargeable batteries, this is even possible separately per cell, provided that the recharge-
able battery has a balancer plug that is connected to the charger (via the balancer board).
Proceed as follows:
• Select the function "Battery IR" in the main menu of the charger with the
buttons "STOP" or "–".
• Conrm the selection by pressing the "START" button.
• Then the charger will measure the internal resistance of the connected re-
chargeable battery (the fan will briey start up during measurement).
• After a brief time, the internal resistance will be displayed.
• If a Lithium rechargeable battery is connected to the charger via the balanc-
er connection, you can view the internal resistance of the individual cells.
For this, briey push the button "+".
The example gure on the right shows a 3-cell Lithium rechargeable battery
(XX.X appears when no cell has been recognised).
• If the internal resistance of another rechargeable battery is to be measured, leave the measuring function with the
button "STOP", so that the charger is back in the main menu. Then proceed again as described above.
When the internal resistance of the connected rechargeable battery is too high, measuring does not take
place and no values are displayed. This can happen not only for too-old and defective rechargeable batter-
ies, but also at too-high transfer resistances of the charging cable used by you (e.g. plugs/socket dirty or
worn). In this case, try using a new charging cable.
PROGRAM SELECT
Battery IR
MAIN OUT 10.8m
02.5 05.0 20.2m
XX.X XX.X XX.Xm