CARDIOSTRONG CST-BX90, Assembly And Operating Instructions Manual

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BX 90
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5.3 Battery Pack Care & Maintenance
Power supply: DC 9 V 1000mA AC Adaptor
Please use only the included power supply.
Smart Battery Charger
The charger stops charging when the battery is fully charged. Therefore, it is okay to charge the
charger overnight. However, we advise against permanently connecting the device to an external
power source.
Battery type: DC7.4V 2200mAh 16.28Wh
Batteries do not have an unlimited lifetime. However, if you follow these tips, you can significantly
extend the life of the batteries.
Charging during training
On average, a person trains for about 20 minutes three days a week. This is what the battery is
constructed for. With this training workload, the battery charge oscillates in the optimum range
between 40 and 80 %. If you train more frequently, the battery charge will be 100% - but that won’t
hurt. What the battery doesn’t like, however, is when the charge level drops below 30% or even to 0%.
Charge to 100%
If you should not charge the device to 100% during your workout, we recommend that you charge
the device to 100% with the power supply approx. every two months, e.g. overnight.
Long-term storage
If you do not use the device for a longer period of time, charge it completely before storage. The
charge level will decrease by about 5 to 10 % per month. Therefore, recharge the unit completely
every three months. Under no circumstances should the charge level drop to 0% (residual discharge),
as this will damage the battery.
Battery life
You can charge a lithium-ion battery approx. 300-500 times (charging cycles). Please note that a
charging cycle ranges from 0 to 100 %. It is therefore important never to let the battery level drop to
0%. This way more charges are possible.
Be sure to prevent ...
a) ... that the battery level drops to 0%.
b) ... that the battery is exposed to sub-zero temperatures, the battery is not charged at sub-zero
temperatures.
c) ... that the battery is exposed to temperatures above 45°C.
d) ... that the humidity is too high.
Battery Warning
When the “Battery Warning” is displayed, connect the device to the mains for a maximum of 20
minutes to recharge the battery.