SAME DAY SHIPPING ON 99% OF ORDERS 
Replacement for the Surefire X400 ULTRA X400U-A-GN flashlight battery provides the lithium power source required to operate compatible models. This battery type matches the original power requirements without requiring any product modifications.
Key Features & Benefits
- Engineered as a direct lithium battery replacement
- Supplies power for flashlight use cases
- Designed for Surefire X400 series compatibility
Product Specifications
- Product type: Lithium battery
- Application: Flashlight power source
- Classification: Batteries
- Category: LITHIUM
Replacement Compatibility: Surefire X400 Ultra / X400U-A-GN flashlight and similar models
Discover the Perfect Replacement
Restore flashlight operation with this targeted battery replacement. Verify compatibility with your model before ordering to ensure proper fit and function.
During the checkout process, you can choose from expedited services such as overnight delivery to standard ground shipping. We aim to ensure your order is delivered promptly and reliably, wherever you are.
All returns must be made within 30 days of purchase with the invoice. (After 30 days, Interlight credit only, Minimum 25% restocking fee, no returns after 60 days, special items order just for you are not returnable.)
At Interlight, your satisfaction is our priority. We offer a 30-day money-back guarantee on eligible products, provided they are returned in resalable condition with the original invoice.