Philips mx40 Rechargeable 3.7V 7Wh Battery 453564413441 989803176201 batteries

Description

Philips mx40 battery
The age of a li-ion battery begins at the date of manufacture. The date of manufacture is listed on the side of the battery.
Should be good till 2023 or 500 cycles.
The lifetime of a li-ion battery depends on the frequency and duration of use. When properly cared for, the useful life is approximately
4 years or 500 complete charge-discharge cycles
, whichever comes first. In addition, experience indicates that the incidence of failure may increase with battery service life due to the accumulated stresses of daily use. We therefore strongly recommend that li-ion batteries be replaced after 2 years or
500 complete charge-discharge cycles
. The age of a li-ion battery begins at the date of man