Readytosky 2-6S UBEC (5 V / 12 V): specs
A voltage regulator (UBEC) for LiPo packs of 2S to 6S with a 5 V or 12 V output at 3 A. The maker lists it for powering telemetry, brushless gimbals and flight controllers.
Specs
| Spec | Value | Source |
|---|---|---|
| Input voltage | 2-6S | source Readytosky 2-6S 5V/3A and 12V/3A Switchable UBEC, Specifications |
| Output voltage | 5 V or 12 V, switchable | source Readytosky 2-6S 5V/3A and 12V/3A Switchable UBEC, Specifications |
| Output current | 3 A | source Readytosky 2-6S 5V/3A and 12V/3A Switchable UBEC, Specifications |
| 12 V output condition | Maker note: for 12 V output use a 4S-6S battery; a 3S battery cannot give 12 V | source Readytosky 2-6S 5V/3A and 12V/3A Switchable UBEC, Specifications |
Power
| Value | Source | |
|---|---|---|
| Supply | 2-6S battery input; output 5 V or 12 V | source Readytosky 2-6S 5V/3A and 12V/3A Switchable UBEC, Specifications |
| Current | 3 A (output rating) | source Readytosky 2-6S 5V/3A and 12V/3A Switchable UBEC, Specifications |
Pinout
We don't publish a pin table for this part: no official source we could verify gives one. Check the labels printed on your module, and see the notes below.
The maker page gives no pin or wire table.
Build with it
Project ideas for the Readytosky 2-6S UBEC (5 V / 12 V). Each link opens Soldr with the prompt filled in; Soldr assigns the pins, checks power and shows how to wire every part.
- Supervised ESP32 weather readout from a LiPo: A short bench session, not a logger left running. The 3S pack is inside the 2S to 6S input range and the 5 V setting is allowed for a 3S pack; the ESP32 board takes the 5 V on its 5 V input. Set the switch to 5 V and confirm with a multimeter before connecting anything. The UBEC has no low-voltage cut-off (the maker page lists none), so the alarm is the only warning: stay beside the pack while it is connected and unplug it when you walk away. Join the pack to the UBEC input leads through an XT60 pair, and fit a blade fuse in the positive pack lead using an inline blade-fuse holder you already own (the fuse only counts when a holder is fitted) (a 5 V 3 A output draws about 1.4 A from a 3S pack plus losses; the maker lists no input current, so a 5 A fuse is a starting point, not a maker figure). Charge only with the balance charger inside the LiPo charging bag, never unattended; disconnect the pack before touching any wiring. Learning project.
- Two-servo pan and tilt from a LiPo: The UBEC is set to 5 V and feeds the servos and the ESP32 board's 5 V input; the output is rated 3 A and the servo stall current is not documented, so test one servo at a time and join the grounds. LiPo handling: charge only with the balance charger inside the LiPo charging bag, never unattended; fit the low-voltage alarm; disconnect the battery before touching any wiring. Learning project. The 3 A rating is the output limit and the servo stall current is not documented, so test one servo at a time and join the grounds. Set the switch to 5 V and confirm with a multimeter before connecting anything. The UBEC has no low-voltage cut-off (the maker page lists none), so the alarm is the only warning: stay beside the pack while it is connected and unplug it when you walk away. Join the pack to the UBEC input leads through an XT60 pair, and fit a blade fuse in the positive pack lead using an inline blade-fuse holder you already own (the fuse only counts when a holder is fitted) (a 5 V 3 A output draws about 1.4 A from a 3S pack plus losses; the maker lists no input current, so a 5 A fuse is a starting point, not a maker figure).
- A radio-controlled servo mount where an RC receiver and an SG90 servo run from a 3S LiPo through a 5 V UBEC: At 5 V the UBEC output is inside the FS-R6B's 4.0 V to 6.5 V supply range, so the pack voltage never reaches the receiver directly. LiPo handling: charge only with the balance charger inside the LiPo charging bag, never unattended; fit the low-voltage alarm; disconnect the battery before touching any wiring. Learning project. Set the switch to 5 V and confirm with a multimeter before connecting the receiver: the 12 V setting would exceed the receiver's 6.5 V limit. The UBEC has no low-voltage cut-off (the maker page lists none), so the alarm is the only warning: stay beside the pack while it is connected and unplug it when you walk away. Join the pack to the UBEC input leads through an XT60 pair, and fit a blade fuse in the positive pack lead using an inline blade-fuse holder you already own (the fuse only counts when a holder is fitted) (a 5 V 3 A output draws about 1.4 A from a 3S pack plus losses; the maker lists no input current, so a 5 A fuse is a starting point, not a maker figure).
Common mistakes
- For the 12 V output use a 4S to 6S pack; a 3S pack cannot give 12 V (source).
- The maker page does not say how the 5 V or 12 V output is chosen, so check the selected output with a multimeter and no load before connecting a 5 V board (source).
- The UBEC has no low-voltage cut-off (the maker page lists none), so a LiPo can still be over-discharged while the regulator runs; watch the pack voltage, fit a low-voltage alarm and do not leave it connected unattended (source).
Not covered by the official source
- The maker page gives no efficiency, protection list, dimensions, weight, switching method or wire details, so these are empty.
- The maker gives no adjustment range.
Sources
- link (Readytosky product page, 2-6S 5V/3A and 12V/3A Switchable UBEC)