You can not change the battery in the AQUAmark, how often will it need replacing?
The AQUAmark uses very low power electronics, and when in continued operation will last up to 2 years. When not used continuously expect a greater life expectancy. If your AQUAmark does need replacing after this time, we offer a discount against new units bought from us. AQUAscat Q. The AQUAtalk program runs, but never establishes a connection with the logger. Ensure the external power supply to the system is turned on. The supply should be between 10 and 28V dc. At 12V the supply current will typically be between 100 200mA when the disk is inactive and between 200mA and 300mA when the disk is busy. On a power up from sleep the hard disk spin-up may momentarily cause the current to peak at over 500mA the user should ensure the power supply used can supply sufficient power while remaining within the specified limits. If a variable voltage supply is used, raising the voltage will reduce the current demand.