We answer to RC hobbists' demand! Here they are the bare PCBs of the VPack series! Integrate it to your beloved LiPo battery. It comes in a 5V ouput. However you can also modify one 0603 resistor RF2 to get other desired voltage output. This is for the advanced user who knows what she/he is doing. You assume full responsibility. VPack_PCB_AA VPack_PCB_AAA