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Snowbird Power Systems

Products

One platform, five boards.

Every Snowbird shares the charger, the supervisor, the inputs and the pinout. What changes is the battery it is built around.

All five in stock Ships from British Columbia CAD, duty prepaid to the US
The Snowbird Feather 1S: a matte navy Feather-sized circuit board with gold castellated edges, a USB-C port, white JST connectors, a shielded Bluetooth module with a chip antenna, a power inductor and the Snowbird wordmark in white silkscreen.
1S BLE

Snowbird Feather 1S

$59.00 CAD

The default. A complete 1S power system on a Feather.

  • Raw LiPo or Li-ion pouch cells, protected on the board
  • USB-C and solar in one part, 10 W continuous
  • BTHome to Home Assistant with no integration work
Specifications
The Snowbird Core 1S: the Feather 1S board with the USB-C, Qwiic and solar connectors left off, their gold pads exposed, ready to solder onto a carrier.
1S · module BLE

Snowbird Core 1S

$49.00 CAD

The Feather 1S as a solder-down module for your own PCB.

  • Every signal on castellations, including USB data and solar input
  • Same firmware, same register map, same library as the Feather 1S
  • Pre-certified radio module; carry "Contains" labels, not a radio test
Specifications
The Snowbird 18650: a longer Feather-width navy board with an on-board 18650 cell holder holding one unbranded cell, USB-C and connectors at one end and the Bluetooth module at the other.
1S · 18650 BLE

Snowbird 18650

$64.00 CAD

Raw cylindrical cells, the cheapest capacity there is, made safe.

  • 1S1P or 1S2P 18650 in an on-board holder; LiFePO4 or Li-ion
  • Thermistor pad against the cell, so the charge window is the cell's
  • 10 W from solar, 15 W from USB-C
Specifications
The Snowbird Pack: a double-width navy Feather board with a yellow XT30 connector and a white balance connector along its wide side, with a small shrink-wrapped three-cell pack plugged in behind it.
2S to 4S BLE

Snowbird Pack

$89.00 CAD

2S to 4S packs with balancing, for robots and anything above 5 V.

  • 2S, 3S or 4S by a resistor; passive balancing at 50 mA
  • 20 W continuous from solar, 15 W from USB-C
  • Per-cell voltage and imbalance in the register map
Specifications
The Snowbird Lite 1S: a Feather-sized navy board like the Feather 1S but with a small bare microcontroller in place of the Bluetooth module.
1S · no BMS

Snowbird Lite 1S

$34.00 CAD

The entry price, for cells that bring their own protection.

  • Same pinout, same library, same safety ceilings
  • No radio: for sites and customers that forbid one
  • 24 µA idle, the lowest in the line
Specifications

Which board

Start from the battery.

Tell us what you are building on and the right board falls out.

Your board

The Snowbird Feather 1S from directly above, showing the USB-C port, Qwiic and solar connectors at one end, the Bluetooth module at the other, and the battery connector, terminal block, charger and LEDs between them.

Compare

Side by side.

Generated from the same product data as every SKU page, so the two cannot disagree.

Feather 1S$59.00 CAD Core 1S$49.00 CAD 18650$64.00 CAD Pack$89.00 CAD Lite 1S$34.00 CAD
Cells 1S 1S 1S, one or two 18650 in parallel 2S, 3S or 4S, set by a resistor 1S, protected pouch cell required
Chemistries Li-ion, LiPo, LiHV, LiFePO4, LiSOCl2 primary mode Li-ion, LiPo, LiHV, LiFePO4, LiSOCl2 primary mode Li-ion, LiHV, LiFePO4, LiSOCl2 primary mode Li-ion, LiPo, LiHV, LiFePO4, LTO, sodium-ion Li-ion, LiPo, LiHV, LiFePO4
Solar 6 to 22 V, MPPT, 10 W continuous, 15 W peak 6 to 22 V on castellations, MPPT, 10 W continuous, 15 W peak 6 to 22 V, MPPT, 10 W continuous, 15 W peak 6 to 22 V, MPPT, 20 W continuous 6 to 22 V, MPPT, 10 W continuous, 15 W peak
3.3 V 1.5 A continuous, always on inside the discharge window 1.5 A continuous 1.5 A continuous 1.5 A continuous, synchronous buck 1.5 A continuous
5 V 2 A continuous, switchable; off by default 2 A continuous, switchable; off by default 2 A continuous, switchable; off by default 2 A continuous, synchronous buck, switchable; off by default 2 A continuous, switchable; off by default
Bluetooth BTHome v2 broadcast, Battery Service, custom GATT; read-only by default BTHome v2 broadcast, Battery Service, custom GATT; no-radio firmware build available BTHome v2 broadcast, Battery Service, custom GATT; read-only by default BTHome v2 broadcast, Battery Service, custom GATT with per-cell voltages; read-only by default None
Idle current 28 µA outputs unloaded; 42 µA advertising every 2 s; 3 µA in ship mode 28 µA outputs unloaded; 42 µA advertising every 2 s; 3 µA in ship mode 28 µA outputs unloaded; 42 µA advertising every 2 s; 3 µA in ship mode 31 µA outputs unloaded; 45 µA advertising every 2 s; 4 µA in ship mode 24 µA outputs unloaded; 3 µA in ship mode
Outline Feather, 50.8 × 22.86 mm, castellated, four mounting holes Feather, 50.8 × 22.86 mm, castellated, four mounting holes; 3.1 mm tall with no connectors Feather-width, 75 × 23 mm, Feather header on one end, four mounting holes Double-width Feather, 50.8 × 45.7 mm, Feather header on one edge, four mounting holes Feather, 50.8 × 22.86 mm, castellated, four mounting holes
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