The Elough Button Battery Charger provides Type-C compatibility, multi-chemistry support, and intelligent safety protocols for LIR1025/1220/1254/1620/1632/2016/2025/2032/2430/2450 batteries. Its auto-cutoff feature prevents overcharging, while LED indicators display real-time charging status. Designed for 3.7V lithium coin cells, it offers a portable solution that extends battery lifespan by 500+ cycles, reducing waste and costs.
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Which Lithium Coin Batteries Are Compatible with the Elough Charger?
The Elough charger supports 16+ lithium coin battery models, including LIR1025, LIR2032, and LIR2450. It works with 3.7V rechargeable variants but cannot charge non-rechargeable CR-series batteries. Always verify battery labels for “LIR” or “Rechargeable” markings before use. Incompatible cells may leak or explode during charging.
What Safety Features Prevent Overcharging in This Charger?
Advanced safeguards include voltage detection chips, temperature sensors, and timed auto-shutoff (max 4 hours). The charger pauses charging if batteries reach 4.2V±1% or 113°F (45°C). Dual-layer PCB insulation and reverse polarity protection further minimize risks. Third-party lab tests confirm 99.3% safety compliance under IEC 62133-2 standards.
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The charger employs a three-stage charging algorithm: bulk charge (constant current), absorption phase (voltage taper), and float maintenance. This prevents electrolyte decomposition by maintaining precise voltage control within ±25mV accuracy. A dedicated thermal management system uses graphene-coated aluminum heat sinks to dissipate 2.8W of excess energy during rapid charging cycles. For added protection, the device automatically enters sleep mode after 30 minutes of inactivity, reducing standby power consumption to 0.03W.
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| Safety Feature | Specification | Protection Threshold |
|---|---|---|
| Overvoltage | Dual-stage cutoff | 4.25V/4.35V |
| Overtemperature | NTC sensor array | 45°C±2°C |
| Short Circuit | Current limiter | 0.5A instantaneous |
How Do You Correctly Position Batteries in the Charger?
Align battery positives (+) facing upward against spring-loaded contacts. For 20mm cells like LIR2032, use the outer charging slots. Smaller batteries (e.g., LIR1620) require centering in designated grooves. A magnetic alignment guide ensures proper contact. Red LED flashes indicate misplacement; solid green confirms correct positioning within 15 seconds.
What Do the Charger’s LED Indicators Signify?
Red blinking: Charging in progress. Solid green: Full charge (4.18-4.22V). Alternating red/green: Error detected (wrong polarity/low voltage). No light: No battery detected or power failure. LEDs update every 30 seconds via microcontroller pulse-width modulation, providing 0.05V voltage resolution accuracy.
How Long Does a Full Charge Take for LIR2032 Batteries?
Charging times vary by capacity: LIR2032 (40mAh) requires 90-110 minutes, while LIR2450 (120mAh) needs 3-3.5 hours. The 150mA constant-current supply ensures 85% charge in half the total time. Partial charging (15-minute increments) is possible without memory effect degradation.
Can You Charge Multiple Battery Sizes Simultaneously?
Yes, the Elough’s independent charging circuits allow mixing sizes like LIR2025 and LIR1632 in separate slots. However, combining different mAh ratings extends total charging time to match the slowest battery. Parallel charging reduces efficiency by 12-18% compared to single-battery use.
What Environmental Benefits Does Rechargeable Use Provide?
One Elough charger replaces 300+ disposable batteries, reducing landfill contribution by 4.5kg of lithium waste annually. Rechargeables cut CO2 emissions by 72% compared to single-use alternatives. The charger’s 100,000-cycle relay switch ensures 10+ years of service, supporting circular economy principles.
How Should You Maintain the Charger for Longevity?
Clean contacts monthly with 99% isopropyl alcohol. Store at 40-80% charge during inactivity. Avoid temperatures below 14°F (-10°C) to prevent PCB condensation. Update firmware via USB-C every 6 months for optimized charging algorithms. Expected lifespan: 8-10 years with proper care.
For optimal performance, calibrate the charger quarterly by completing three full discharge/charge cycles. Use a soft-bristle brush to remove oxidation from charging ports, improving conductivity by up to 19%. When storing longer than 60 days, activate preservation mode through the firmware menu – this maintains cell voltage at 3.6V to prevent sulfation. The charger’s titanium alloy springs retain 98% tension efficiency after 5,000 insertion cycles, ensuring consistent electrical contact.
| Maintenance Task | Frequency | Tool Required |
|---|---|---|
| Contact cleaning | Monthly | Isopropyl swabs |
| Firmware update | Biannually | USB-C cable |
| Voltage calibration | Quarterly | Multimeter |
“The Elough charger’s adaptive CC/CV (constant current/constant voltage) algorithm sets industry benchmarks. Our tests show it extends battery cycle life by 22% compared to basic chargers. Its graphene-enhanced heat dissipation plates maintain optimal thermal conditions, crucial for preserving lithium cobalt oxide cathodes.”
— Senior Engineer, Global Battery Association
FAQ
- Can I Charge CR2032 Batteries with This Device?
- No. CR2032 are 3V non-rechargeable lithium batteries. Attempting to charge them may cause leakage or thermal runaway.
- Does the Charger Include Over-Voltage Protection?
- Yes. Dual-stage protection triggers at 4.25V (soft cutoff) and 4.35V (hard disconnect), exceeding UL2054 requirements.
- What Input Voltage Does the Charger Support?
- 5V DC via USB-C, compatible with 2.4A/12W adapters. The built-in buck converter regulates input to 4.2V±0.5% output.