• Product Overview: The SmarToools AA 2600mWh USB Type-C Rechargeable Lithium-ion Battery set provides a convenient, eco-friendly, and cost-effective power solution for modern electronic devices. Designed with direct USB Type-C charging ports built right into the battery body, it eliminates the need for bulky, specialized battery chargers—simply plug in a standard Type-C cable to recharge in approximately 1.5 to 2 hours. Unlike traditional NiMH rechargeable batteries that suffer from voltage drop, SmarToools delivers a constant 1.5V regulated output from full charge down to empty, making it ideal for high-drain electronics like gaming controllers, wireless keyboards, mice, flashlights, and toys. Outfitted with an integrated LED charging status indicator, multi-layer circuit protections, and up to 1000+ recharge cycles, SmarToools rechargeable AA batteries deliver long-lasting, reliable performance while significantly reducing disposable battery waste. • Key Highlight 1: Constant 1.5V Regulated Output - Maintains a stable 1.5V output across the entire discharge cycle to ensure peak performance in high-drain devices. • Key Highlight 2: Direct USB Type-C Charging Port - Recharges via a standard USB-C cable without needing a separate battery charging dock. • Key Highlight 3: High 2600mWh Energy Capacity - Delivers long operational runtimes with ~1730mAh equivalent capacity per battery. • Key Highlight 4: Built-in LED Indicator & Safety Protection - Integrated LED status light with protections against overcharge, over-discharge, and short circuits.