Seaward DO4000 - Manual (Page 8)

Operating Instructions Digital Ohmmeter DO4000 Series
6
The batteries may now be replaced in the battery cassette by undoing the central
screw,
Whilst the 4000 series offer long battery life we advise that a spare battery
cassette with batteries is purchased ensuring that you are always ready for
immediate use.
Disposal of Batteries
Care should be taken when disposing of the batteries, they may be returned to
Cropico carriage paid for safe disposal.
Any regulations and directions applying to the disposal of such material must be
applied.
Do not dispose of battery in fire.
Do not short circuit
Do not crush, puncture, open, dismantle or otherwise mechanically interfere with
the batteries.