ColdBye PD 30W 20000mAh 7.4V Battery Pack for Heated Vest Built-in 3 DC Size Adapter, DC Power Bank for Heated Vest & Jackets with LED Display Compatible with Major Heated Clothing Brands

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• 【Exclusive Tri-Size DC Ports – No Adapters Needed】The only heated vest battery pack with three native 5V DC jacks (3.5 mm, 3.8 mm, 4.0 mm) built right in. No dangling adapter cables, no extra bulk, and nothing to lose. Just plug and play— compatible with most 5V heated jackets and vests
• 【Power Heat + USB Devices at the Same Time】Run your 5V heated garment while charging your phone or tablet through USB-A and USB-C simultaneously. Stay warm and connected all day without unplugging your jacket to top up your devices. (Note: two DC garments at once are not supported.)
• 【Pro-Grade LED Display for Total Control】Smart digital meter shows battery level in 1% steps plus real-time voltage and current per port. Press once to switch between battery %, current, and voltage.—no more “50% then sudden shutdown” surprises
• 【30 W PD Fast Recharge + Certified Safety】USB-C PD in/out up to 30 W (5–20 V) recharges the pack 0→100% in ≈2.9 h with a 30 W charger (≈5.8 h @15 W; ≈8.7 h @10 W). Multi-protection meets UL2056 / FCC / CE / RoHS standards to prevent over-charge, over-discharge, short-circuit, and overheating. Compact size (3.62×2.70×1.31 in, 0.69 lb) makes it pocket-friendly and travel-ready
• 【True 20,000 mAh – All-Day Warmth】High-density cells deliver dependable heat for up to ≈12 h (Low), ≈9 h (Medium), or ≈6 h (High), plus about 4 full recharges for an iPhone 15 Pro. Optimized to reduce voltage drop late in the cycle, so your jacket stays warmer for longer