MÔ TẢ SẢN PHẨM - Current: 1A adjustable - Charge precision: 1.5% - Input voltage: 4.5V-5.5V - Full charge voltage: 4.2V - Led indicator: red is charging Blue is full charged - Input interface: micro USB. - Work temperature: -10° ~ +85° - Inversed polarity: NO - Size: small to 25X19X10mm The module current adjustable as long as you change the fixed resistors in the circuit board , then can change the output 100mA-1000mA, very convenient. Note 1. Ampere meter can only be connected to 5v input end of the module. 2. It is better that the charging current is 37% of the battery capacity. If you charge to the battery of 1000mAH, current of 400 is enough. 3. The connection wire should not be too thick. 4. Make sure the connect point is good 5. NO Reveral polarity. - Charge module: Linear charging - Current: 1A adjustable - Charge precision: 1.5% - Input voltage: 4.5V-5.5V - Full charge voltage: 4.2V - Led indicator: red is charging Blue is full charged - Input interface: micro USB. - Work temperature: -10° ~ +85° - Inversed polarity: NO - Size: small to 25X19X10mm The module current adjustable as long as you change the fixed resistors in the circuit board , then can change the output 100mA-1000mA, very convenient. Note 1. Ampere meter can only be connected to 5v input end of the module. 2. It is better that the charging current is 37% of the battery capacity. If you charge to the battery of 1000mAH, current of 400 is enough. 3. The connection wire should not be too thick. 4. Make sure the connect point is good 5. NO Reveral polarity.