Internal Battery; Connectors And Cables - AML Oceanographic AML-6 RT User Manual

1.2 Internal Battery

While an AML-6 RT instrument must use external power for operation, the instrument does
contain a small rechargeable internal battery. The internal battery is used to retain the time,
date, and configuration information when the instrument is not externally powered. The battery
also helps to provide a graceful shutdown in the event of sudden power loss. The internal
battery is intended to maintain operation of the instrument.
The battery typically requires a charging top-up when the instrument is first received by the user.
Application of power through the MCBH connector will charge the internal battery. Note that the
instrument body may get warm during charging. This is normal and a result of the
instrument's fast-charge capability. This behaviour does not occur during typical deployments.
The instrument has the ability to charge its internal battery via USB-C connector, but USB-C
ports found on most computer systems do not provide enough current to achieve this. To charge
the instrument through its USB-C port, connect the instrument to an appropriate USB-C-wall
wart adapter (minimum 5W charger).

1.3 Connectors and Cables

AML-6 RT instruments come with two connectors:
1. A waterproof MCBH connector.
a. This connector is used to provide external power and serial communications to
the instrument during deployment. The instrument can be factory set to either
RS-232 or RS-485 full duplex. Its typical use is for the transmission of live
measurements during deployment. Note: Internally logged data cannot be
downloaded with this connector (instead, use the USB-C connector).
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