Hczykya 7.4V 5000mAh Li-Poly Battery Pair for Heated Gloves Socks Hats — 3.5mm DC Jack, Long Runtime

Hczykya's 7.4V 5000mAh rechargeable Li-Polymer battery pair powers heated garments and accessories with long runtime and built-in safety protections.

These two rechargeable 7.4V, 5000mAh lithium polymer batteries are designed as drop-in power for heated gloves, socks, hats and jackets that use a 3.5mm female DC jack. With UL and FCC certifications and integrated protection electronics, they balance higher capacity with safety features suitable for cold-weather outdoor use like skiing, hunting, and hiking.

How long will these batteries run my heated gloves or socks?

Runtime depends on garment power draw and heat setting, but the 5000mAh capacity gives noticeably longer operation than smaller packs. Expect multiple hours on medium heat and shorter times on the highest setting; actual results depend on the heating element's wattage.

• Capacity: 5000mAh per battery (two included).
• Typical full-charge time: 3.5–5 hours with an appropriate charger.
• Charge cycles: approximately 500–600 typical recharge cycles.
• Use lower heat settings to extend run time during long outings.

Are these batteries safe to use in clothing and outdoor gear?

Each battery includes protection circuitry to reduce risks like overcharge, overdischarge, and short circuits. Follow basic care instructions—remove cells before washing garments and keep charging away from flammable materials—to maintain safety and longevity.

• Protection IC specs: overcharge cutoff ≈ 4.20V, overdischarge cutoff ≈ 2.7V.
• Rated voltage: 7.4V; charging voltage: 8.4V; max charge current ≈ 2A.
• Temperature ranges: charge 0°C–45°C, discharge −20°C–60°C.
• Certifications: UL and FCC confirmed for manufacturing and electrical standards.

Will these batteries fit my heated gear and how do I connect them?

These batteries use a female DC jack with a 3.5mm outer diameter and 1.35mm inner diameter, which is a common connector on heated garments. Verify your garment's plug type before purchasing; they work where the jack specification matches.

• Connector: female DC jack (3.5mm OD / 1.35mm ID).
• Package contents: two 7.4V 5000mAh batteries (charger not included).
• Recommended: fully charge before first use and recharge every three months if stored long-term.
• Not a universal adapter—confirm physical connector compatibility first.

How should I charge, store, and care for these Li-Poly batteries?

Charge with a charger that matches the battery's 8.4V charging voltage and recommended current (0.5C standard, up to 1.0C fast). Store in a cool, dry place and cycle the batteries at least once every three months if unused to preserve capacity.

• Standard charge current: 0.5C; fast charge up to 1.0C; max charge current ~2A.
• Storage temperature: −20°C to +35°C; avoid freezing or extreme heat.
• Do not puncture, incinerate, crush, or expose to open flames.
• Remove cells from garments before washing and keep chargers supervised while in use.

Who is this for: Outdoor enthusiasts and anyone who needs extended, reliable power for heated apparel—skiers, hunters, fishermen, delivery riders, and commuters—will benefit from the higher capacity and built-in safeguards of this Hczykya battery pair. These packs suit users who have heated garments with a compatible 3.5mm female DC jack and want longer warmth between charges. If you require a charger or a different connector, pick compatible accessories before use.