1S-8S Lithium Battery Capacity Indicator Module Level Tester Board
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৳ 140.00৳ 170.00 (-18%)
The 1S-8S Lithium Battery Capacity Indicator Module is an ultra-compact, universal fuel gauge designed to monitor voltage levels in multi-cell battery packs. Featuring a clear, backlit display layout with a 4-segment battery icon, it provides an instant visual metric of remaining power (25%, 50%, 75%, 100%). The board supports a wide voltage spectrum and can be manually configured via rear solder jumpers to accurately match 1S through 8S battery strings (3.7V to 33.6V). Complete with an onboard tactile toggle switch (
SW1) to activate the display on demand, this highly versatile tester board is the perfect addition to custom power banks, electric vehicles, and DIY 18650 battery banks.Would you like a detailed long description or instructions on how to configure the rear solder pads to select your specific battery configuration (1S to 8S)?
Product Overview
The 1S–8S Lithium Battery Capacity Indicator Module is a highly versatile, compact battery fuel gauge designed to provide instant, real-time power diagnostics for multi-cell lithium battery configurations. Featuring an intuitive, high-contrast visual display, this board acts as a universal voltage-sensing meter. It eliminates the guesswork of handling rechargeable power systems by converting raw, fluctuating cell voltages into a clear, easily readable multi-segment capacity icon.
Advanced Circuit Design & Versatility
- Universal 1S to 8S Compatibility: Unlike single-voltage battery meters, this module features a highly adaptable programming grid on the back of the circuit board. By bridging or desoldering specific onboard programming pads (
R1throughR19), users can manually calibrate the board’s internal comparator logic to match anything from a single 3.7V lithium cell (1S) all the way up to a high-voltage 8S battery string (up to 33.6V max). - On-Demand Power Activation (
SW1): To prevent the indicator itself from draining your battery pack during storage, the PCB is equipped with a front-facing tactile micro-switch (SW1). Pressing this button activates the display instantly for a quick status check, while releasing it completely cuts off current draw, keeping your standby power usage at absolute zero. - Streamlined Surface-Mount Components: The lower section of the layout features a tightly integrated circuit array centered around an advanced processing controller IC (
U1), filtering capacitors (C1), protection zener diodes (ZD), and high-stability precision resistor networks. This robust layout ensures accurate voltage readings and exceptional immunity to voltage spikes. - Rugged Board Profile: Designed for seamless integration into custom product enclosures, the module features a flat-profile screen bezel and built-in mounting flanges on each side. This allows the display to be clean-mounted inside DIY battery banks, control panels, or 3D-printed project boxes.
Visual Capacity Metrics
The high-visibility screen features an internal light-guiding silhouette lens that maps out battery status through distinct structural stages:
- Outer Frame Illumination: Lights up when connected to a valid voltage source, indicating system life.
- 4-Segment Energy Scale: Clear horizontal block steps track electrical reserves dynamically:
- 1 Block Active: 25% Capacity Remaining (Indicates a low-voltage warning threshold)
- 2 Blocks Active: 50% Capacity Remaining
- 3 Blocks Active: 75% Capacity Remaining
- 4 Blocks Active: 100% Fully Charged
Common Field Applications
- DIY 18650/21700 Battery Packs: Adding a convenient visual fuel gauge to custom-built portable power banks, camping power supplies, and field radio gear.
- Electric Vehicles & Robotics: Monitoring real-time battery drainage on electric skateboards, custom e-bikes, combat robots, and autonomous drone ground stations.
- Cordless Power Tool Upgrades: Retrofitting older or custom-built cordless tools with modern lithium cells and adding a battery level check button.
- Off-Grid Solar Power Systems: Integrating small, low-power capacity displays inside portable solar generators or remote battery-enclosure cabinets.
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