I've been using the HTRC T240 Duo to charge 4S and 5S LiPo packs for my FPV drones for over 18 months. Before the firmware update, AliExpress htrc t240 duo firmware update - AliExpress
While the T240 Duo "supports firmware upgrade," finding the files can sometimes be tricky. Visit the official Shenzhen Haitan Technology (HTRC) Download Page
: There are documented cases of the T240 failing after minimal use (fewer than 10 charges). Accuracy Concerns
I've been using the HTRC T240 Duo to charge 4S and 5S LiPo packs for my FPV drones for over 18 months. Before the firmware update, AliExpress htrc t240 duo firmware update - AliExpress
While the T240 Duo "supports firmware upgrade," finding the files can sometimes be tricky. Visit the official Shenzhen Haitan Technology (HTRC) Download Page
: There are documented cases of the T240 failing after minimal use (fewer than 10 charges). Accuracy Concerns