Dedicated Power for Your Heated Beanie. The Gobi Heat® 3000 mAh Battery is your dedicated power solution—designed specifically for Gobi Heat® heated beanies. This compact battery ensures extended warmth and comfort for cold-weather activities. Why Choose This Battery? Extended Runtime: 3000 mAh provides up to 7.5 hours of battery life Compact Design: Lightweight and portable for easy carrying Dedicated Design: Optimized specifically for heated beanie products Reliable Power: Consistent heat output for uninterrupted comfort Perfect Replacement: Keep a spare battery on hand for all-day warmth Battery Specs: Capacity: 3,000mAh Type: Rechargeable Lithium-Ion Runtime: Up to 7.5 hours (depending on settings) Weight: 0.2 lbs Compatible with: Crest Women's Heated Beanie and Summit Men's Heated Beanie. Model: RB-HA-1