K&F CONCEPT 12-Pack AAA Lithium Rechargeable Batteries with Fast Charger

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1.5V Constant Output
No Voltage Drop: K&F CONCEPT AAA Rechargeable Batteries deliver steady 1.5V output from full charge to complete depletion. Unlike Ni‑MH batteries, they avoid gradual voltage drop and premature low‑power alerts to keep your devices running at peak performance. Featuring 1300 mWh high‑energy density for extended runtime, they prevent unexpected game controller shutdowns, dimmed flashlights and reduced motor performance, offering consistent and reliable power
1600 Recharge Cycles
Cost‑Saving & Eco‑Friendly: Capable of up to 1600 charge‑discharge cycles per cell, these rechargeable lithium AAA batteries replace thousands of disposable alkaline batteries. Cut long‑term expenses and reduce battery waste by eliminating frequent purchases and single‑use battery waste. Perfect for daily‑use household devices: remote controls, mice, keyboards, flashlights, game controllers, door locks, kids' toys, security cameras, trail cameras, massagers, blood pressure monitors and more (Not for devices with max discharge current over 1.5A)
4.5‑Hour USB‑C Fast Charging
Broad Compatibility: The USB‑C charging case fully charges 12-Pack AAA rechargeable lithium batteries in only 4.5 hours at 5V/3A input for faster device reuse and minimal downtime. Compatible with third‑party AAA lithium batteries. Simply remove the adapter sleeves to charge AA lithium batteries. 12 independent charging slots flexibly accommodate diverse charging needs
2-In-1 Charge & Storage Case
Smart Repair Extends Battery Life: Charger and storage case in one compact, portable design — great for home and travel. Keep your triple A batteries neatly organized, protected from drops, scratches, and dust. The built-in smart repair function automatically detects and reactivates deeply-discharged batteries that ordinary chargers can't revive, extending overall battery lifespan so you get more out of every charge cycle
Independent LED Digital Display
Status at a Glance: Each battery slot has its own independent LED digital indicator, giving you real-time and clear charging status with zero guesswork. Flashing Green: Charging in progress. Solid Green: Fully charged. Solid Red: Fault alert (incompatible battery, damaged cable, or excessively high/low temperature). No Light: No battery inserted or poor contact
Multi‑Layer Safety Protection
Globally Certified: Built‑in safeguards protect against overcharging, over‑discharging, over‑current, over‑voltage, overheating, and short‑circuiting. Rigorously tested and compliant with FCC, IEC, CE and RoHS standards, it delivers safe, peace‑of‑mind charging