BT2.0 1S Lipo Battery Charger with Power Supply for 4 BetaFPV Batteries

The BetaFPV BT2.0 1S LiPo Charger Board is a compact, highly versatile power management solution engineered specifically for micro FPV drone pilots using 1S lithium power cells equipped with solid-pin BT2.0 connectors. Designed to bypass the high resistance and voltage sag inherent in legacy PH2.0 connectors, this board supports the concurrent charging of up to six 1S batteries. Unlike dangerous parallel charging configurations, this board features completely isolated individual charging circuits per port, ensuring highly precise and safe cell conditioning. It is uniquely equipped with a multi-source input interface, allowing it to be powered on the bench via a standard AC wall adapter or in the field using high-capacity 3S or 4S LiPo batteries through a dedicated XT60 input rail with integrated low-voltage cutoff protection.

Features

Isolated Multi-Channel Infrastructure: Configured with six completely independent charging lanes, managing each 1S cell on an individual isolated circuit rather than a parallel grid to prevent cross-battery current balancing hazards.

Multi-Source Field Portability: Features a native XT60 input receptor allowing pilots to use standard 3S or 4S flight packs as a field power source for continuous non-stop on-site battery replenishment.

Smart Low-Voltage Cutoff Protection: Integrated source monitoring circuitry automatically terminates power routing if the input source battery drops to its critical voltage ceiling, preventing over-discharge and safeguarding your field packs from permanent cell damage.

Dual-Channel BEC Hardware Topology: Incorporates two high-efficiency BEC voltage regulation loops to ensure continuous, stable current supply across all active charging lanes.

Dynamic LED Status Matrix: Outfitted with localized status indicators providing clear visual tracking of the charging cycle progress for each independent port.

Comprehensive BT2.0 Upgradability Ecosystem: Fully integrated into the high-conductivity BT2.0 peripheral lineup, facilitating direct hardware conversions from high-resistance legacy PH2.0 connectors to minimize voltage sag.

Specifications

Brand: BetaFPV

Product Name: BT2.0 1S LiPo Charger Board Series

Primary Terminal Interface: Solid-Pin Low-Resistance BT2.0 Hardware Receptors

Concurrent Input Channels: 6 Completely Independent Isolated Ports

Field Input Power Interface: Native XT60 Male Receptor Terminal

Supported Input Cell Configurations: 3S or 4S LiPo Mainlines (Manual Tactile Toggle Selection Required)

Input Low-Voltage Disconnect Thresholds: 10.8 V (For 3S Field Packs) / 14.4 V (For 4S Field Packs)

Regulated Charge Current Output: Fixed at Approximately 400 mA Per Port Channel

Target Charge Cutoff Voltage: 4.35 V Max for High-Voltage LiHV/LiPo Cells (Precision Tolerance ±0.5%)

Alternative Mainline Power Input: Optional High-Throughput External AC-to-DC Wall Power Adapter Kit

Physical Structural Mass: 36.86 g

Physical Footprint Dimensions: 75 mm × 42 mm × 22 mm

Ecosystem Cross-Compatibility Matrix

BT2.0 Structural Hardware Connectors: Loose 10-Piece DIY Terminal Replacement Packs

2S Whoop Cable Pigtails: Dual-Cell Pre-Tinned Integrated Flight Wire Harnesses

1S Whoop Cable Pigtails: Single-Cell Dedicated Low-Resistance Mainline Leads

Interconnect Adapter Cables: Male BT2.0 to Female PH2.0 Legacy Conversion Bridges

Telemetry Maintenance Tools: Integrated BT2.0 Dedicated Smart Charger and Voltage Tester Modules

High-Performance Flight Cells: Factory-Optimized 260mAh, 300mAh, and 450mAh 1S BT2.0 LiHV Packs

AC Power Adapter Regional Reference

US Wall Configuration: Compatible with power grids in the USA, Canada, Japan, Brazil, Philippines, and Thailand.

UK Wall Configuration: Compatible with power grids in the United Kingdom, India, Pakistan, Singapore, Malaysia, Vietnam, Indonesia, Maldives, and Qatar.

EU Wall Configuration: Compatible with power grids across continental Europe, including Germany, France, Netherlands, Denmark, Finland, Norway, Poland, Portugal, Austria, Belgium, Hungary, Spain, Sweden, alongside Russia and South Korea.

Notes

Field Voltage Switch Requirement: When powering the charger board via the XT60 interface using a field battery, you must manually slide the physical input voltage selector toggle to match your pack configuration. Select the "3S" setting for a 3S battery or the "4S" setting for a 4S battery. Failure to manually align this hardware toggle with the real-world input source will halt the charging cycle completely or cause improper voltage cutoff tracking. Note that the optional AC wall adapter can be used regardless of the toggle's physical position.

Dynamic Port Isolation Rules: Because each channel runs a completely dedicated, isolated charging circuit, you can safely connect or disconnect single 1S batteries at varying states of discharge at any time during operation without affecting the charging velocity or safety profiles of adjacent ports.

Package

1 x BetaFPV BT2.0 1S LiPo Charger Board Core Assembly

1 x Dedicated Heavy-Duty AC-to-DC XT60 Wall Power Supply Adapter (Optional variant or standalone item dependent on chosen purchase configuration)