HobbyFly GNB27 and JST-PH 2.0 Connector 1S Lipo Battery Balance Parallel Charging Board Charger Board 6 Channel

The HobbyFly GNB27 is a professional-grade 6-channel parallel charging board designed specifically for simultaneous charging of multiple 1S LiPo batteries with JST-PH 2.0 connectors. This board is essential for RC hobbyists, drone operators, and FPV racing enthusiasts who require fast turnaround times between flights without compromising battery health through improper charging practices. The GNB27 solves the critical problem of unbalanced cell voltages and extended charging cycles by enabling balanced parallel charging of up to six 1S batteries at controlled amperage rates.

Product Overview

The HobbyFly GNB27 parallel charging board utilizes a sophisticated voltage regulation and current distribution circuit that ensures each connected 1S LiPo battery receives precisely balanced charge current regardless of individual cell resistance variations. The board features integrated JST-PH 2.0 connectors, which are industry-standard connectors for lightweight RC applications, eliminating the need for adapter cables and reducing connection losses. The design incorporates low-resistance PCB traces and quality capacitors to minimize voltage drops across channels, ensuring consistent charging performance across all six charging ports simultaneously.

This charging board is engineered to work seamlessly with standard hobby-grade chargers rated between 2A to 10A output, making it compatible with popular chargers like iMax B6, SkyRC, and other AC/DC balance chargers. The parallel configuration allows users to charge six 1S batteries in the time it would take to charge one battery sequentially, dramatically improving workflow efficiency for competitive drone pilots and RC enthusiasts. The board includes protective measures against reverse polarity and incorporates quality connectors rated for repeated connection cycles, ensuring longevity in demanding field conditions.

Key Specifications

Specification	Details
Product Type	6-Channel Parallel Charging Board with Balance Function
Brand	HobbyFly
Model	GNB27
Connector Type	JST-PH 2.0 (Input and Output)
Battery Compatibility	1S LiPo Batteries (3.7V nominal)
Number of Channels	6 Independent Parallel Channels
Maximum Charging Current	Up to 10A total (distributed across channels)
Voltage Range	3.0V to 4.2V per cell
PCB Material	High-Quality FR-4 with Copper Traces
Origin	Original/Authentic
Warranty	7 days on manufacturing defects
Shipping	1-5 days from Bengaluru
Delivery	7-8 days across India
Support	24/7 via Email and WhatsApp

Key Features

• 6-Channel Independent Parallel Configuration: Charge up to six 1S LiPo batteries simultaneously with balanced voltage distribution across all channels, eliminating the need for sequential charging cycles
• JST-PH 2.0 Connectors: Industry-standard connectors specifically designed for lightweight RC applications, ensuring secure connections with minimal contact resistance and reliable repeated use
• Integrated Balance Function: Built-in voltage regulation circuit maintains balanced charging across all channels, preventing cell overvoltage and extending battery lifespan significantly
• Low-Resistance PCB Design: High-quality FR-4 PCB with thick copper traces minimizes voltage drops and heat generation, ensuring efficient power transfer and consistent charging performance
• Universal Charger Compatibility: Works with any standard hobby charger rated 2A to 10A output, including iMax B6, SkyRC, and similar balance chargers without requiring additional adapters
• Reverse Polarity Protection: Integrated protection circuit prevents damage from accidental reverse connections, safeguarding both the board and connected batteries
• Compact and Lightweight Design: Minimal form factor makes it portable for field use, competitions, and travel while maintaining robust construction for demanding environments

Applications and Use Cases

• FPV Drone Racing: Competitive FPV pilots require rapid battery turnaround between heats and qualifying rounds. The GNB27 enables charging six 1S batteries in parallel, reducing downtime and allowing pilots to maintain consistent battery health across multiple packs
• RC Quadcopter Operations: Multi-rotor enthusiasts can charge entire battery sets simultaneously, optimizing field time and ensuring all batteries reach optimal charge levels before flight missions
• RC Car and Truck Racing: Off-road racing competitors use parallel charging boards to maintain multiple 1S battery packs in peak condition for tournament events and practice sessions
• Commercial Drone Services: Professional drone operators managing fleet operations can charge multiple 1S batteries in parallel, improving operational efficiency and reducing total mission turnaround time
• Educational Robotics Programs: Schools and universities use parallel charging boards in robotics labs to manage charging for multiple student project batteries simultaneously during competitions and demonstrations
• Hobby Enthusiast Collections: RC modelers with extensive battery collections can maintain all packs in balanced condition through organized parallel charging protocols

How to Use

To use the HobbyFly GNB27 parallel charging board, first ensure your primary charger is set to balance charge mode and configured for 1S LiPo batteries at your desired charging rate (typically 1C to 2C rate). Connect the main JST-PH 2.0 input connector from your charger to the board's input port, ensuring the connection is secure and properly oriented. Insert your 1S LiPo batteries into any or all six available JST-PH 2.0 output connectors on the board, starting the charging process. The board will automatically distribute charge current equally across all connected batteries, with the integrated balance circuit maintaining voltage equilibrium. Monitor the charging process visually or through your charger's display, and disconnect batteries once fully charged to 4.2V as indicated by your charger's completion signal.

For optimal results and battery longevity, always charge at 1C rate or lower (for example, charge a 1000mAh battery at 1A maximum), avoid leaving batteries connected after charging is complete, and inspect connectors regularly for corrosion or damage. Store the charging board in a dry location away from moisture and extreme temperatures. If charging multiple battery sets sequentially, allow brief cooling periods between charging cycles to prevent heat accumulation in the PCB and connectors. Always use a charger with integrated balance charging capability and never exceed the board's maximum current rating of 10A total across all channels.

Frequently Asked Questions

Can I charge 2S or 3S batteries with the HobbyFly GNB27?

No, the GNB27 is specifically designed for 1S LiPo batteries only. The board's voltage regulation and balance circuit are calibrated for single-cell 3.7V nominal batteries. Attempting to charge higher-voltage battery packs could damage the board and create safety hazards. For multi-cell batteries, use appropriate multi-cell parallel charging boards designed for 2S, 3S, or higher configurations.

What charger should I use with the GNB27 board?

The GNB27 is compatible with any standard hobby balance charger rated between 2A and 10A output, including popular models like iMax B6, iMax B6AC, SkyRC D100, and similar chargers. Ensure your charger is set to balance charge mode and configured for 1S LiPo batteries. The charger's output current should not exceed 10A total across all six channels. Always verify your charger's specifications before connecting to avoid potential damage.

How many batteries can I charge simultaneously?

The GNB27 features six independent parallel channels, allowing you to charge anywhere from one to six 1S LiPo batteries simultaneously. The charging current is automatically distributed across all connected batteries, with each battery receiving equal current share. For example, if your charger outputs 6A, each of six connected batteries receives approximately 1A of charging current.

Is the GNB27 safe for unattended charging?

While the GNB27 includes protective circuits, we recommend supervised charging as best practice with any LiPo battery system. Never leave LiPo batteries charging unattended for extended periods, as thermal runaway or connector failures could occur. Always charge in a well-ventilated area away from flammable materials, and use a LiPo battery charging bag for added safety during the charging process.

Can I mix different capacity batteries on the board?

Yes, the GNB27 can charge batteries of different capacities simultaneously. The board's voltage regulation ensures each battery charges to the same 4.2V maximum regardless of capacity. However, charging time will vary based on individual battery capacity and the charger's current distribution. For optimal results, group batteries of similar capacity together to ensure more uniform charging completion times.

When will I receive my order?

Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.

What is your return and warranty policy?

We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.

Are bulk discounts available?

Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.

Why Buy from The Engineer Store

• Genuine Products: Sourced directly from authorized distributors with authentication
• Expert Team: Our technical team validates every product before listing
• Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
• Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
• Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
• Technical Support: 24/7 expert guidance via email and WhatsApp
• Returns: 7-day return policy on manufacturing defects only

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