ITEM NAME:3.6/4.2V TP5000 Lithium Ion LiFePO4 Battery Charging Board Charger Module #gib Store Home Promotion Hot Item Add to Fav.Switch buck mode has higher efficiency and fever than linear charging circuit. Only one jumper is needed to change the settings. For lithium iron phosphate batteries of 3.6V, only soldering iron is needed to open the tin spot between the two soldering pads.