One Battery. All Your Gobi Gear. The Gobi HeatA(R) 7.4V/5000 mAh PD Fast-Charge Battery is your universal power solution-compatible with ALL 12V, 9V, and 7.4V Gobi HeatA(R) products. Whether you own a heated vest, jacket, base layer, or accessories, this single battery powers them all. Why Upgrade to the Universal Battery? Universal Compatibility: Works with most Gobi HeatA(R) products-no more juggling multiple product-specific batteries (excluding hats, socks and gloves) PD Fast-Charge Technology: Get back to full power faster with advanced quick-charge capability Future-Proof: Compatible with new Gobi products as your collection grows Cost Savings: Own 2+ heated items? One universal battery replaces multiple product-specific batteries Compact & Portable: Lightweight design makes it easy to carry a spare Battery Specs: Capacity: 5,000mAh Type: Rechargeable Lithium-Ion Voltage Range: 5V-20V (12V, 9V, and 7.4V compatible) Runtime: Up to 20 hours (depending on settings and product) Weight: 0.3 lbs Features: PD Fast-Charge technology Compatible with: Heated vests, jackets, parkas, base layers, and most Gobi HeatA(R) accessories. Check your product&';s voltage to confirm compatibility. Model:KEG7479