User manual
Poseidon MKVI User Manual
Chapter 1
Page 6
Charging
Included with the Poseidon MKVI is a proprietary multi-function desk-top charger unit that
includes adapters for most international power outlets. The battery charger has three status
lights arranged in a circular pattern on the open section of the base. These are, in counter-
clockwise order from the lower left in Figure 1-9: power, “Learn Cycle” status, and charge
status.
Power Indicator Light: When green, the power is “on” and the charger is ready to operate. If
it occasionally “blips”, the charger does not have external power, and is actually draining the
battery.
Learn Cycle Indicator Light: The middle light indicates the status of a “Learn Cycle”. The
battery has its own onboard computer that monitors the state of charge. Over a period of
weeks to months, the computer’s estimate of the remaining power in the battery gradually
decreases in accuracy. The computer can “re-learn” what a full (100%) charged battery should
look like using the Learn Cycle of the charger. The battery computer keeps track of how long
it has been since the last time it has undergone a full Learn Cycle. If that time exceeds a certain
value, the computer will advise the user to perform an optional Learn Cycle. If the time since
the last Learn Cycle is very long, the computer may automatically initiate a Learn Cycle. The
Learn Cycle takes approximately 8 hours to complete. Once a Learn Cycle has been initiated,
it can only be stopped either by successful completion of the Learn Cycle or by physically
removing the battery from the charger (not recommended).
Power status on/off
Learn cycle status
Charge status
Learn cycle activation button
Figure 1-9. (Left): Inserting the smart battery into the desktop charging station. The battery
screw posts align with the vertical slots; the battery is pushed down until the contact post
mates with the offset cylindrical receiver hole. (Right): The battery properly inserted into the
charger. See the text for denitions of the status indicator lights.
WARNING:
Removing the battery from the charger in the middle of a Learn
Cycle will leave an uncertain state of charge on the battery,
increasing the risk of a power failure during a dive.
The Learn Cycle indicator light has the following meanings when plugged in with the smart
battery inserted:
• Off: Learn Cycle not needed or not in progress.
• Alternating Red and Green ashing once per second: Learn Cycle is recommended.
• Both Red and Green simultaneously ashing once per second: Learn Cycle is in progress.
• Red continuously on: Learn Cycle has failed (often caused by power loss or user
intervention).
• Green continuously on: Learn Cycle successfully completed.