LiitoKala New Lii-K4 Li-ion NI-MH/NI-Cd Smart Charger for 18650/21700/26650/AA/AAA - LCD Display & USB Power Bank Function

Product TitleLiitoKala Lii-K4 Smart Battery Charger - 4-Slot Universal LCD Charger for Li-ion/Ni-MH (18650/AA/AAA) with USB Output & Recovery Function⭐ Key Features (Bullet Points)SMART ALL-IN-ONE CHARGINGAuto-detects Li-ion/IMR/INR/Ni-MH batteries (Supports 26650, 18650, AA, AAA, etc.) & optimizes charging current.REAL-TIME LCD MONITORINGDisplays voltage, current, capacity (mAh), time, and battery type for each slot.DUAL ROLE DESIGNActs as a 5V/2A power bank (USB output) when not charging lithium batteries.ZERO-VOLTAGE REVIVALRevives over-discharged "dead" batteries with OU voltage activation tech.SAFE & RELIABLE8-layer protection: Over-charge/discharge, short-circuit, reverse polarity, over-current/voltage, high-temp protection.FLEXIBLE CHARGING CONTROLManual current adjustment (300mA/500mA/1000mA per slot) via one-touch buttons.MIXED-BATTERY SUPPORTCharge different battery types/capacities in all 4 slots simultaneously.INTUITIVE LED INDICATORSRed (charging) → Green (full) → Red/Green blink (error/E-code alert). Technical SpecificationsParameterDetailInputDC 5V/2A (Micro USB)Output5V/2A (USB port for power bank function)Charging CurrentLi-ion: 300mA×4 / 500mA×4 / 1000mA×2 slotsNi-MH: 500mA×1-4 slots (auto-adjusted)Compatible BatteriesLi-ion: 10440/14500/16340/18650/21700/26650, etc.Ni-MH: AAAA/AAA/AA/C/DProtectionShort-circuit/Over-current/Over-voltage/Reverse Polarity/OverheatingMaterialFire-resistant ABS+PC ShellDimensions135×95×30mm (L×W×H) / Weight: 165gOperating Temp.0°C – 40°C (32°F – 104°F)️ User Guide HighlightsSimple Operation:Insert battery → Screen lights up (select current during 5-sec slot blink).Press slot button to toggle charging current (300/500/1000mA).Monitor real-time stats: Voltage/Current/Capacity/Time.Status Indicators: Solid Red = Charging | Solid Green = Fully Charged | Blinking = Error (Check "-E" code).Note: USB output disabled during Li-ion charging.⚠️ Important Notes✅ Use Only rechargeable Li-ion/Ni-MH batteries.❌ Avoid exposure to rain, direct sunlight, or extreme temps (40°C). Keep away from children (adult supervision recommended). Package Includes1× LiitoKala Lii-K4 Charger1× Micro USB-C Cable (No power adapter)Why Choose LiitoKala?Trusted by 500,000+ users worldwide for high-precision, safe battery management solutions since 2010!