If you remove good AA batteries to turn off the MX40, keep them together
as a set for later re-use so that all batteries will have the same level of power
Important— Do not "store" disposable AA batteries by leaving them in the
incorrect polarity position in the MX40.
Be careful not to short circuit the batteries. Batteries can get hot when
shorted. Short circuits are caused when a piece of metal touches both the
positive and negative terminals simultaneously. More than a momentary
short circuit will generally reduce the battery life. In case of a short circuit,
discard the batteries, or just the shorted one if the batteries are new.
Disposal of Batteries
When disposing of batteries, follow local laws for proper disposal. Dispose
of batteries in approved containers. If local regulations require you to
recycle batteries, recycle batteries in accordance with those regulations.
Battery Charge Status
The battery charge indicator displays in the Status Area and communicates
the remaining battery charge time when using both AA batteries or the
rechargeable lithium-ion battery.
When the MX40 is initially powered-on, it takes approximately 25 seconds
for the indicator to populate. During this time, the indicator displays a ? in
the battery icon.
In order to guarantee overall device performance, certain functionality is
disabled when the battery charge reaches critical levels. See the tables
below for additional information about battery status.
Lithium-ion Rechargeable Battery Charge Status
(ECG & Spo
> 25 hours
> 9 hours
< 19 hours
< 7 hours
< 13 hours
< 5 hours
< 6 hours
< 2 hours
< 3 hours
< 1 hours