ColdBye PD 30W 𝟕.𝟒𝐕 5𝐀 𝟐𝟎𝟎𝟎𝟎𝐦𝐀𝐡 Battery Pack for Heated Vest Built-in 3 DC Size Adapter, DC 7.4V Power Bank for Heated Vest and Jackets with LED Display

Specifications

• 【Exclusive Tri-Size DC Ports – No Adapters Needed】The only heated vest battery pack with three native 7.4 V 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 7.4 V heated jackets and vests
• 【Power Heat + USB Devices at the Same Time】Run your 7.4 V 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