Features The module has USB power protection The module has short circuit protection and 0 volt battery activation With battery protection, the module has stable performance Suitable for kid toys car, digital cameras, solar charging and audio equipment Adopted of high quality electronic components, and accuracy process, ensure for the durability Specification: Item Type: Charging Module 1-Cell(1S) Version: Input voltage : DC 4.5V-5.5V(Recommend DC 5V) Charging voltage about : 1.35V-1.7V Charging current about : 230mA-240mA 2-Cell(2S) Version: Input voltage : DC 4.5V-5.5V(Recommend DC 5V) Charging voltage about : 2.7V-3.4V Charging current about :230mA-240mA 3-Cell(3S) Version: Input voltage : DC 4.5V-5.5V(Recommend DC 5V) Charging voltage about : 4.05V-5.1V Charging current about : 230mA-240mA 4-Cell(4S) Version: Input voltage : DC 4.5V-5.5V(Recommend DC 5V) Charging voltage about : 5.7V-6.8V Charging current about : 230mA-240mA 5-Cell(5S) Version: Input voltage : DC 4.5V-5.5V(Recommend DC 5V) Charging voltage about : 6.75V-8.5V Charging current about : 230mA-240mA 6-Cell(6S) Version: Input voltage : DC 4.5V-5.5V(Recommend DC 5V) Charging voltage about : 8.1V-10.2V Charging current about : 230mA-240mA 7-Cell(7S) Version: Input voltage : DC 4.5V-5.5V(Recommend DC 5V) Charging voltage about : 9.45V-11.9V Charging current about : 190mA-210mA 8-Cell(8S) Version: Input voltage : DC 4.5V-5.5V(Recommend DC 5V) Charging voltage about : 10.8V-13.6V Charging current about : 190mA-210mA USB Power Protection: Short circuit protection and 0 volt battery activation Battery Protection: Operating Ambient Temperature: -40℃ to +85℃ Storage Temperature: -65℃ to +125℃ Size: Approx. 30 x 15 x 4mm / 1.2 x 0.6 x 0.2in Package List: 2 x Charging Module Note: 1. The output voltage cannot be measured with a multimeter without a battery. But can be observed with an oscilloscope.2. If your battery is 1-3Cell, please choose a high current version: NIMHCRTA Package List 2 x Charging Module