Horus X10S Express - 21700/20700 Li-Ion Battery Tray Adapter

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This adapter enables the installation of a Li-Ion pack with 21700 cells on Horus X10S Express. I utilized two LG INR21700-M50T cells in series, each drawing 5 amps. To accommodate these cells, an original battery tray had to be modified from scratch, minimizing its housing as much as possible. Unfortunately, the package containing the 21700 cannot be removed without opening the rear door, but given the enormous autonomy and convenience of USB charging, this is likely unnecessary. In contrast, the 20700 pack can be easily retrieved by placing a nylon ribbon underneath it.