Operation
975-0125-02-01 2–15
Echo Charger Operation
For the built-in Echo Charger to operate, both the Echo Charger and the main
charger must be set to Enabled. By default, the Echo Charger is enabled by the
MS2000 to charge an engine battery 10 seconds after the main charger has entered
Bulk or Absorption mode, and the house battery voltage is at 13.2 volts DC or
higher. The Echo Charger’s maximum charge current is 10 amps.
The Echo Charger stops charging under the following conditions:
•the maximum charge time of 8 hours is up.
•the current to the engine battery is less than 1 amp for more than 3 minutes.
•the engine battery voltage is equal to or greater than the house battery voltage.
Operation of the Echo Charger is shut down when:
•the MS2000 exits Absorption mode. The Echo Charger does not operate when
the main charger is in Float or Equalize mode.
•you disable it from the System Control Panel.
•it reaches a fault condition. See “Fault Messages” on page4–9.
See “Echo Charger Specifications” on page A–4 for more information.

Enabling and Disabling Operation from the System Control Panel

You can enable or disable operation of the Echo Char ger in the MS2000 advanced
menu using the System Control Panel. By default, the System Control Panel
shows the MS2000 basic menu. To view the advanced menu, see “Selecting the
MS2000 Advanced Menu” on page3–20.
To enable or disable the Echo Charger:
1. On the Select Device menu, highlight MS2000.
The cursor on the right of the screen indicates where you are in the menu.
2. Press Enter.
The MS2000 menu appears.
Figure 2-8
Select Device Menu