DollaTek 18650-Board Dual USB 5V 2.4A Mobile Module 18650-Lithium Battery Charger-Board with Overcharge Overdischarge Short Circuit Protection DIY USB Board

• The 18650-battery must be flat and the length is 65MM. The pointed battery cannot be used. If you are using old batteries, different capacities, the assembled battery is guaranteed to be at least 3.5V per voltage. If the voltage is too low, it will not be charged.
• It is possible to connect only one lithium battery or multiple lithium batteries in parallel. The capacity of connected battery is no more than 200,000 mA, As long as the battery with a voltage of 3.0-4.2V can be used.
• The protection circuit of the boosted lithium battery has been integrated, prevent over-discharge, over-charge, overload short circuit protection, over current protection, and over temperature protection.
• Charing-cable: support three USB data cable charging, including for iPhone and Android.
• Size: 6.5 * 2.5 * 0.1cm; Dual output current: 5V 2.4A; Input voltage B+ to B-: 3.0 - 4.2V.

LED digital display status: The LED digital screen displays the current battery charge while charging. When discharging, the LED digital screen displays the current power, and the display is saved in about 30 seconds (double-click the button to resume display). The system will provide an accurate battery indication after a complete charge and discharge. Parameters: IR of PCM : ≤65 mΩ Allowed 0V change: Yes Constant current: 2.4A Dual output current: 5V 2.4A Input voltage B+ to B-: 3.0 - 4.2V Button function: Press and hold the button after standby, the LED digital screen displays the power. Technical Specification Prevent Overcharge Protection Detection voltage: 4.20±0.05V Release voltage: 4.100±0.05V Detection delay time: <200 ms Prevent Overdischarge Protection Detection voltage: 3.0±0.10V Release voltage: 3.10±0.10V Detection delay time: <100 ms Short Circuit Protection Short detection delay time: <50 uS Release Conditions: Cut off load Normal Current Consumption Normal current consumption of PCM: Max 60uA Stanby current consumption: Max 50uA Suggest Working Conditions Max continuous charge/discharge current: 1.5/2.4A Suggest working temperature: -5～45℃ Package Including 1 x Dual USB 5V 2.4A 18650-Charging Board Note: Note: The cable which is connected to battery must be short. The positive pole of the battery is connected to B+ and the negative pole is connected to B-, do not reverse it. If it is reversed, it will burn out!