Ysi ProDSS User Manual download pdf (Page 6)

Introduction

Battery use and battery life

The ProDSS uses a rechargeable lithium-ion (Li-Ion) battery pack as a power source. The battery comes pre-installed in

the ProDSS and does not need to be replaced until the battery charge capacity is deemed unacceptable by the user.

The battery is shipped at ~50% full capacity and charging the battery is not required before ﬁrst use.

Battery life depends on use, enabled parameters, LCD brightness, and GPS use. As with all lithium-ion batteries, battery

life will decline over time and use. This decay is typical and should be expected.

A new ProDSS battery is expected to last for the following durations (25 °C (77 °F), auto sampling, GPS on, keypad

backlight off):

• ProDSS instrument only - 48 hours

• ProDSS with fully loaded cable assembly and 25% (Default) LCD brightness - 20 hours

• ProDSS with fully loaded cable assembly and 100% LCD brightness - 14 hours

To increase battery life, enable manual sampling mode (Sampling on page 20). Manual sampling mode powers the

sensor/s on to take a measurement and then powers down to conserve battery life. Battery life may also depend on

the battery charging practices used. For maximum battery life, keep the battery 40% to 80% charged. Also, a larger

discharge (e.g. to 50%) is better than a small discharge (e.g. to 90%) between recharges.

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Ysi ProDSS User Manual Page 6