Operation; Charging And Discharging; Led Overview - enphase AC Battery Installation Manual

Operation

The following sections describe operation of the AC Battery.

Charging and Discharging

The charging and discharging functions are controlled by the Envoy-S as follows:
Charging: The AC Battery typically charges during daylight hours and when the solar production is greater
than the home consumption. The AC Battery can also be programmed to charge from the electric grid at
night under certain conditions.
Discharging: The AC Battery discharges power only to service local loads. It does not discharge power
through the utility meter onto the electric grid. The AC Battery discharges for use by the home if all of the
following occur:
 The consumption exceeds the production
The actual time of day is after the peak start time, if time of use is configured

The batteries are not fully discharged. If the batteries are fully discharged, then they must recharge

from the PV system before they can discharge again.

LED Overview

The LED glows red while the AC Battery boots up. If the LED remains red for more than two minutes, the
battery is in trickle charge mode and will remain so until it reaches a minimum state of charge (up to 30
minutes). After the AC Battery is booted up, the LED becomes blue or green (depending on the charge level).
If the LED remains red after one hour or changes to a flashing red state, contact Enphase Customer Support
at enphase.com/en-us/support/contact.
Other LED states include:
State
Solid red
Red flashes in sequences of two
Solid amber
Solid blue or green
Slowly flashing blue
Slowly flashing green
Green one second flashing
Off
16
Description
Starting up
Error. See "Troubleshooting".
Not operating due to high temperature. See
"Troubleshooting".
Idle. Color transitions from blue to green as state
of charge increases. You can check Enlighten for
charge status.
Discharging
Charging
Looking for noncommissioned unit
Not operating. See "Troubleshooting".
© 2016 Enphase Energy Inc.
AC Battery Installation
141-00036 Rev 01