Description
The 3S 18650 Li-Po Lithium Battery Capacity Indicator Module is a compact, highly reliable power monitoring display designed specifically to provide intuitive, real-time voltage and charge status for 3-series (11.1V nominal / up to 12.6V fully charged) lithium systems. Featuring a striking red outline frame and bright blue LED display blocks, this meter makes monitoring your power reserves effortless across 3S lithium-ion packs, 18650 cells, and polymer lithium battery assemblies.
Installation is completely plug-and-play: simply connect the positive and negative terminals of the display board to the corresponding terminals of the battery under test. Built-in reverse polarity protection ensures the circuit remains fully safe even if the wires are accidentally mismatched. Its ultra-lightweight, slim profile makes it an ideal addition to DIY 11.1V power boxes, portable test gear, and custom multi-cell builds.
Note: Actual product design or component layout may vary slightly based on manufacturing stock availability. No external power supply required—operates directly off the tested power source.
Key Features
- 3-Series Lithium Optimization: Tailored specifically for 3S (11.1V nominal / 12.6V max) lithium-ion, LiPo, and 18650 cell pack monitoring.
- Reverse Polarity Protection: Smart internal circuit design prevents permanent damage if the positive and negative wires are accidentally crossed.
- Vibrant Dual-Color Digital Display: Features a sharp red outline framing bright blue LED blocks that fully illuminate when the battery capacity is at maximum charge.
- Real-Time Telemetry: Automatically displays live battery capacity and voltage metrics the moment it is connected.
- Ultra-Lightweight Form Factor: Weighing only ~5 grams with compact shipping dimensions (5 × 2 × 1 cm), it integrates seamlessly into tight custom enclosures.
Benefits
- Instant Visual Capacity Checks: Quickly gauge your 3S battery’s remaining energy at a glance without pulling out a separate digital multimeter.
- Foolproof Installation: Reverse connection safety prevents accidental burnout during hobbyist wiring and panel builds.
- Zero Standby Complications: Direct two-wire hookup means you monitor power on-demand simply by tapping into the circuit.
Applications
- 3S DIY Power Banks: Status display panel for custom 11.1V portable lithium power boxes and solar generator packs.
- Portable Electronics & Gadgets: Battery level tracking for handheld DIY instruments, 12V class projects, and field gear.
- Electric Equipment & Scooters: Compact voltage indicator integration for custom 3S battery compartments and mobile devices.
Package Includes
- 1 x 3S 18650 Li-Po Lithium Battery Capacity Indicator Module
- 1 x Instruction Manual / Quick Guide
Specifications
| Parameter | Specification |
|---|---|
| Item Type | Battery Testing Equipment / Digital Battery Level Indicator Module |
| Model Type / Series | 3S Battery Capacity Indicator Module |
| Battery Compatibility | 3-Series (3S) 18650, Li-Po, and Lithium Battery Packs (11.1V Nominal) |
| Display Colors & Type | Red Outline Frame with Bright Blue LED Display Blocks |
| Safety Protection | Built-in Reverse Polarity Protection (Will not burn out if miswired) |
| Net Weight / Shipping Weight | ~3 g / 0.005 kg |
| Shipping Dimensions | 5 cm × 2 cm × 1 cm |
