**Product Description**
Since 2017, has specialized in designing USB rechargeable batteries trusted by millions of users in over 30 countries. The **3400mWh AA lithium rechargeable battery** is our upgraded high-capacity model, delivering **30% longer runtime** compared to standard rechargeable AA cells.
With a **convenient USB-C port** and included **4-in-1 cable**, you can recharge four AA batteries simultaneously without the need for a bulky external charger. Simply plug them into a USB port – whether from a laptop, power bank, car adapter, or wall charger – and enjoy a **full charge in just 2 hours**.
Unlike NiMH 1.2V batteries, AA lithium batteries maintain a **true 1.5V constant output**, providing stable and reliable performance in devices that require consistent voltage. Ideal for wireless mice, keyboards, toys, shavers, smart locks, beauty tools, remote controls, and more. *(Not recommended for high-current devices such as flashlights or LED lighting.)*

**Technical Specs:**
- Battery Type: AA Lithium-ion
- Capacity: 3400mWh (2250mAh)
- Voltage: 1.5V constant output
- Charging Port: USB-C
- Charging Time: ~2 Hours
- Max Instant Current: 2A
- Recharge Cycles: 1200+

**Package Includes:**
- 4 × 3400mWh AA USB Rechargeable Batteries
- 1 × 30cm 4-in-1 USB-A to USB-C Charging Cable
- 1 × Storage Box

**Usage Tips:**
1. Do not use while charging.
2. Ensure positive and negative ends do not touch during charging.
3. Always use the provided USB-C cable, not a traditional battery charger.
4. For technical support, click “Sold by ” and contact us directly.

Enjoy a smarter, eco-friendly, and more cost-effective way to power your everyday devices with AA rechargeable batteries.
High Capacity & Long Runtime – Each AA rechargeable lithium battery delivers 3400mWh (2250mAh), offering up to 30% longer usage time compared to standard NiMH or alkaline AA batteries. Perfect for devices that need consistent, reliable power.
Fast USB-C Charging & 4-in-1 Cable Included – Recharge 4 batteries simultaneously in just 2 hours using the provided 4-in-1 USB-A to USB-C cable. No extra charger required – charge directly from laptops, power banks, car adapters, or wall outlets.
Stable 1.5V Constant Output – Unlike NiMH 1.2V cells, these AA lithium batteries maintain a steady 1.5 volts, ensuring peak performance in devices such as wireless mice, game controllers, toys, toothbrushes, shavers, smart locks, and remote controls.
1200+ Recharge Cycles & Cost-Saving – One battery replaces up to 1200 disposable AAs, saving you money and reducing environmental waste. After only 20 recharges, the cost is already lower than single-use batteries – eco-friendly and economical.
Safe & Reliable with Warranty – Built-in dual circuit protection prevents overcharging, overheating, and short-circuiting. Backed by ’s 1-year hassle-free replacement guarantee for peace of mind.