Indian Made 4-in-1 ESCs
These are the 4-in-1 ESCs designed and built in India for 5-inch to 7-inch quads: the Botlab Dynamics BotDrive AM32 55A and BotDrive 8-Bit 50A, and the Zerodrag Boost AM32 55A. All three are 30.5 × 30.5 mm boards for 3S–6S packs with current sensing, and the two AM32 boards support bidirectional DShot for RPM filtering. Pair them with a Made in India flight controller from the same maker, or fit them under any Betaflight FC with a standard 8-pin ESC harness.
AM32 vs 8-bit
The BotDrive AM32 55A and Zerodrag Boost 55A run the 32-bit AM32 firmware: bidirectional DShot, RPM filtering, 24–96 kHz PWM and firmware updates through the configurator. The BotDrive 8-Bit 50A is the BLHeli_S-class budget board — plenty for a first 5-inch build, without RPM telemetry unless you flash the paid Bluejay-class firmware.
Current rating
55A continuous per motor comfortably covers a 2207 or 2306 motor on 6S with 5-inch tri-blades. For 7-inch long range on 6S Li-ion the draw is lower and either board is fine; for X-class or heavy-lift look at the industrial motor and ESC pages instead.
Fitting
Standard 30.5 × 30.5 mm M3 mounting. Check the harness pinout against your flight controller — Botlab's solderless boards come with matching plug leads; other FCs take the ESC's 8-pin lead soldered or plugged as usual. Use a capacitor across the battery pads on 6S.
Frequently asked questions
- Who manufactures ESCs in India?
- Botlab Dynamics (BotDrive AM32 55A and 8-Bit 50A) and Zerodrag (Boost AM32 55A) both design and build 4-in-1 ESCs in India. Both are stocked here.
- Do these ESCs support bidirectional DShot?
- The two AM32 boards (BotDrive AM32 55A, Zerodrag Boost 55A) do, which enables RPM filtering in Betaflight. The BotDrive 8-Bit 50A does not out of the box.
- What cell count do the Indian 4-in-1 ESCs take?
- 3S to 6S. Use a low-ESR capacitor on the battery input when running 6S.