1A 3.2-18.5V Multipurpose Battery Charger with With Photovoltaic Cell MPPT Function Complete Charge Controller for Singleor Multi-cell Lithium iongood LiFePO4 or Lithium Titanate Batteries MPPT is 18V : Input DC 18-28VgoodOutput DC 1.2-17V Adjustablegood3.6V 4.2V 4.3V 4.35V 8.4V 12.6V 16.8Vgood MPPT DisablegoodChange R5 to 12Kohmgoodit is recommended to buy DD28CRTAgood : Input DC 7-28VgoodOutput DC 1.2-21V Adjustablegood3.6V 4.2V 4.3V 4.35V 8.4V 12.6V 16.8V 21Vgood The maximum charge current / output current is 1Agood but you can change the current by changing the value of the Rcs resistor. Can be used as Voltage Source when Battery is Absent Automatic Conditioning of Deeply Discharged Batteries Automatic Recharge Led indicator :"" LED is charge status indicator Battery Overvoltage Protection Operating Ambient Temperature-40℃ to +85℃ Size : 45 x 20 x 15mm Weight : 7.3g Applications: 18V 12V 9V Solar battery charging Car battery charging Mobile Loadspeaker Electric Bicycle Charger UPS Portable Industrial and Equipment Standalone Battery Chargers Hand-held Equipment Battery-Backup Systems Portable Industrial and Equipment Standalone Chargers for Lithium iongood LiFePO4 or Lithium Titanate Batteries Colour:black Material:PCB + electronic components Package Contents: 1 x MPPT Solar Controller Only the above package contentgood 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. About Us We provide the good product with the best pricegoodwe support Wholesale/Drop Shipping Order 1. For Drop Shipping ordergood please remark"dropshipping order"good we will prioritize it. 2. For Wholesale/Drop Shipping ordersgood if you have any ideas about the price or packagegoodplease contact us in advancegoodwe will give you the best service to satisfy your demands. About Shipments 1.We will send out the orders ASAP once your payment is completed normally. 2.Please write your complete delivery address with correct phone number and zip codegood especially please confirm your full name. About After-sale Service We are reliable seller and we have our professional after-sale service for all of our customers. If there is any question about the ordergoodplease contact us in advance goodwe will always here until you get a happy answer. About Feedback 1. Please check the package and item when you get carefully to make sure there is no problem. 2. If you have any problem or are not entirely satisfied with your packagegoodplease don’t be hesitate to contact us first before leaving negative feedback. We will resolve the problem to satisfy you. 3. If there is no problemgood please leave us five star positive feedback. Your affirmation is our greatest motivation ! ! !