MIWEN 7.4V 3500mAh Li-Polymer Batteries (2-Pack) for Heated Gear

Meet the MIWEN 7.4V 3500mAh Lithium Polymer Batteries, a compact 2-pack designed to power heated gloves, socks, hats, and jackets. Built for winter outdoor enthusiasts, these cells balance energy capacity with a slim profile that fits discreetly in pockets, mitten sleeves, or the lining of a heated garment. The result is dependable warmth without adding bulk, making it easier to stay out on cold days, whether you are skiing, hunting, or simply braving a chilly commute.

Power you can rely on translates into steady heat when you need it most. Each battery delivers 7.4V with 3500mAh, a combination aimed at keeping heated wearables warm through longer sessions. The kit supports roughly 500 to 600 charging cycles, and a full charge typically takes about 3 to 4 hours, depending on your charger and usage. The connection is via a female DC jack with a 3.5 mm outer diameter and a 1.35 mm inner diameter, designed to pair with compatible MIWEN garments with minimal fuss.

Smart safety and responsible care are built into the design. The batteries carry UL and FCC certifications, and a protection IC provides safeguards against overcharge and short circuits. Specific thresholds include overcharge at 4.20V and overdischarge at 2.7V. For longevity and safety, avoid exposure to flames, remove from the garment before washing, and keep charging away from flammable materials.

In real world scenarios, you may notice the two-pack delivering coverage across multiple heated items. Heated gloves can keep hands nimble on frosty trails, heated socks can add warmth to cold feet on long hikes, and a heated hat can help preserve comfort during dawn patrols or late-night walks. Because heat output depends on activity level and environmental conditions, you can adjust the use to your needs and still enjoy a reliable power source for your cold weather wardrobe.

Specs at a glance

• Capacity 3500mAh at 7.4V
• Type Li-Polymer
• Charging time roughly 3-4 hours
• Connector: female DC jack 3.5mm outer, 1.35mm inner
• Cycles: 500-600

What you get and how to care for them

• Two 7.4V 3500mAh Li-Polymer batteries
• No charger included

Care and storage tips help you maximize life. Fully charge before first use; if storing for extended periods, recharge periodically. When charging, place away from flammable materials and do not charge near moisture. Removing the batteries from garments before washing further protects both the battery and the garment's electronics.