ACR3901T-W1 – Reference Manual
Version 1.02
www.acs.com.hk
Page 9 of 100
5.0. Hardware Design
5.1. Battery
The ACR3901T-W1 is using a rechargeable Lithium-ion battery which has a capacity of 70 mAh.
5.1.1.
Battery charging
Once the battery of ACR3901T-W1 runs out, it may be charged in any of the following modes: OFF,
USB, and Bluetooth; as long as it is connected to a power outlet.
5.1.2.
Battery life
The battery life is dependent on the usage of the device. Below is an estimate of the battery life
depending on the various work conditions:
Mode
Estimated Battery Life
Working Mode
4 days*
(1)
Standby Mode
28 days*
(2)
OFF Mode
1 year
Table 2
: Estimated Battery Lifespan
Note: Results may vary as it depends on the smart card used.
(1)
In Bluetooth mode, run 10 operations per day with 1 minute operation run.
(2)
In Bluetooth mode, set sleep time as 60 seconds and wake up once per day.
5.2. Bluetooth Interface
The ACR3901T-W1 uses Bluetooth Low Energy (LE) 4.0 as the medium to pair with computer/mobile
device.