This module is a small two-way fast charging module, and the main chip is IP2368. Supports multiple fast charging protocols, stable and high-speed charging, and protects equipment from damage. The two-way C port of the product can only be connected to one-way electrical appliances or chargers, such as charging heads, mobile phones and other electrical appliances. It is forbidden to link the modules of the bidirectional C port to the bidirectional C port, which may cause frequent switching between modules and cannot be recognized, and may be in serious cases. IP2368 supports 2/3/4/5/6 batteries in series, and the number of batteries in series can be through external resistors; IP2368 supports external resistors to select ordinary lithium batteries or lithium iron phosphate batteries. The external resistor can set the full voltage. The full voltage of lithium batteries can be set to: 4.15V/4.2V/4.3V/4.35V/4.4V, the full voltage of lithium iron phosphate battery can be set to: 3.5V/3.55V/3.6V/3.65V/3.7V. Type:Two-way fast charging module Input:12-16.8v4 series carp battery pack Maximum power:100W Colour:Black Material:aluminum Package Contents: 1 * Fast Charge Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.