Data Sheet

文件名：技术书
Document Tech. Specification
型号 Model: U3
类型 Type ：USB charger
文件编号 File No.:PSSU3
版本 Edition: A/0
日期 Date:
2017-5-25
©SHENZHEN POWER ADVANCE LIMITED WWW.DLYFULL.COM
Manufacturer reserves the right to alter or amend the design, model and specification without prior notice.
4
/9
About charging current, it has big difference with Input:
1. 5V/1A input:
When we insert 2pcs batteries, it's not enough for power supply, the charging current is 500mA for each slot even
battery size is longer than 65mm.
2. 5V/2A input:
It's enough for 2pcs batteries, so the charging current is only relate with battery size. It has no difference with
battery quantity.
4. protect function
4.1 Over-charge protect function. The highest cut off voltage is 4.20±0.05V
4.2 Battery reverse protect function. Red led will flash for alarming.
4.3 Short circuit protect function. Red LED will flash for alarming.
4.4 Bad battery detection: battery won’t be charged when its voltage is lower than 0.5V. When battery voltage is among
0.5V and 2.8V, it will be charged with a small 100mA current. If its voltage increase into 2.8V within 2 minutes, it will
automatically transfer into normal charging. If its voltage is lower than 2.8V after 2 minutes, it will be disguised bad battery
and red led will flash for alarming.
5.LED indication
5.1 LED indication function：
5.1.1Indication about connecting power: The charger has two led indicator for working condition. When connected 5V
power supply, it will flash for one time between red light and green light.
5.1.2 Indication about charging: After charger finished self-detection, the red led light will be constantly on. After finished
charging, green led will be constantly on.
5.1.3 Indication for alarming: When non-rechargeable battery, bad battery inserted or battery reverse, short circuit happens,
red led will flash. It’s un-normal charging.
6. Environmental Requirements
For indoor use
Operating Temperature
0℃—35℃
Storage Temperature
0℃—40℃
Operating Humidity
35%—95%
Storage Humidity
45%—85%
Testing Temperature
25℃±10℃
Atmospheric Pressure
70—106Mpa
7.EMC REQUIREMENT:
Comply with CE-EMC, ROHS standard and requirements
8. Packing and Storage
8.1 Packing
Color box packaging,together with
Micro 5P USB cable：500±10mm black