slashCAM Forum

Symptom
In rare cases, the orange lamp on the Canon Battery Charger LC-E6 will blink rapidly at regular intervals when the Canon Battery Pack LP-E6 is inserted. In such cases, charging the Canon Battery Pack LP-E6 in the Canon Battery Charger LC-E6 is not possible.

This symptom may occur when a Canon Battery Pack LP-E6 has been discharged due to being unused for a prolonged period of time, such as when it is first purchased.

And how to fix it:

Procedure

1. Plug the Canon Battery Charger LC-E6, with the Canon Battery Pack LP-E6 inserted, into a power outlet.
2. Wait for 20 seconds. If during this time the orange lamp blinks once per second, please continue to charge the battery until the green lamp lights up, which indicates a full charge. At this point, the battery is ready for normal use, and there is no need to follow the remaining steps.
   If during this time the orange lamp blinks rapidly, please move on to Step 3 of this procedure.
3. If the orange lamp blinks rapidly, remove the Canon Battery Pack LP-E6 from the Canon Battery Charger LC-E6.
4. Wait for 10 seconds.
5. Reinsert the Canon Battery Pack LP-E6 into the Canon Battery Charger LC-E6.
6. The Canon Battery Charger LC-E6’s orange lamp should begin to flash slowly (once per second) and charging will begin. Please note: If the orange lamp blinks rapidly again, please repeat steps 3-5 above. If, after a third attempt, the Canon Battery Pack LP-E6 does not charge, please contact the Canon Customer Support Center for assistance.
7. Charge the Canon Battery Pack LP-E6 until the green lamp on the Canon Battery Charger LC-E6 illuminates, signifying that the Canon Battery Pack LP-E6 is fully charged.

Die Zellen können noch nicht defekt sein, der Akku ist gerade mal anderthalb Jahre alt.

Bei Lithium-Ionen-Akkumulatoren führt eine Tiefentladung auf unter 2,4 V zu irreversibler Schädigung und zu Kapazitätsverlust. Sinkt die Spannung einer Zelle auf unter 1,5 V, sollte sie nicht mehr verwendet werden. ... Tiefentladene Lithium-Ionen Akkus sollten aus Sicherheitsgründen nicht weiterverwendet werden.

ruessel hat geschrieben: ↑Mo 28 Jun, 2021 09:35

Die Zellen können noch nicht defekt sein, der Akku ist gerade mal anderthalb Jahre alt.

Bei Lithium-Ionen-Akkumulatoren führt eine Tiefentladung auf unter 2,4 V zu irreversibler Schädigung und zu Kapazitätsverlust. Sinkt die Spannung einer Zelle auf unter 1,5 V, sollte sie nicht mehr verwendet werden. ... Tiefentladene Lithium-Ionen Akkus sollten aus Sicherheitsgründen nicht weiterverwendet werden.

https://de.wikipedia.org/wiki/Tiefentladung

Most mobile phones, laptops and other portable devices turn off when the lithium-ion battery reaches 3.00V/cell on discharge. At this point the battery has about 5 percent capacity left. Manufacturers choose this voltage threshold to preserve some energy for housekeeping, as well as to reduce battery stress and allow for some self-discharge if the battery is not immediately recharged. This grace period in empty state can last several months until self-discharge lowers the voltage of Li-ion to about 2.50V/cell, at which point the protection circuit opens and most packs become unserviceable with a regular charger.

Li-ion batteries contain a protection circuit that shields the battery against abuse. This important safeguard also turns the battery off and makes it unusable if over-discharged. Slipping into sleep mode can happen when storing a Li-ion pack in a discharged state for any length of time as self-discharge would gradually deplete the remaining charge. Depending on the manufacturer, the protection circuit of a Li-ion cuts off between 2.2 and 2.9V/cell. (See BU-802b: Elevated Self-discharge)

Some battery chargers and analyzers (including Cadex), feature a wake-up feature or “boost” to reactivate and recharge batteries that have fallen asleep. Without this provision, a charger renders these batteries unserviceable and the packs would be discarded. Boost applies a small charge current to activate the protection circuit and if a correct cell voltage can be reached, the charger starts a normal charge. Figure 1 illustrates the “boost” function graphically.

TomWI hat geschrieben: ↑Mi 30 Jun, 2021 12:02 Kurzer Nachtrag: Der Akku verhält sich vollkommen unauffällig, gestern und vorgestern ist mein C100 Mk II gut drei Stunden mit ihm gelaufen, er hat jetzt noch ca. 25% Restladung. Anscheinend hatte sich wirklich nur die Steuerelektronik des Akkus "verschluckt".

TomWI hat geschrieben: ↑Mi 30 Jun, 2021 12:02 ... er hat jetzt noch ca. 25% Restladung. Anscheinend hatte sich wirklich nur die Steuerelektronik des Akkus "verschluckt".