ADS Environmental Services Portable FlowShark Pulse QR 775006 A2 - Manual (Page 90)

4-4 ADS Portable FlowShark Pulse Manual
Recharge the battery pack before each use of the Portable
FlowShark Pulse.
Remove battery packs from units that are not in use, and store
them in a dry, frost-free location. Recharge them every two
months (when not in use) to maintain capacity.
Make sure the battery compartment remains locked firmly during
system operation.
Discard used rechargeable battery packs according to state and
local regulations regarding battery disposal.
Never remove any screws other than the safety screws on the
battery cover from the unit enclosure!