Ultrathin Keyring Power Bank for Slim Carry

Ultrathin Keyring Power Bank for Slim Carry

Keychain chargers usually fail on thickness — this ultrathin unit does not: a Grade-A Li-polymer 4,000mAh-class core pressed into a slim aluminum shell, with a battery indicator showing the reserve and the full protection suite (over-voltage, over-current, short-circuit) beneath. The keyring charger that finally fits the pocket line.

Key Features

• Ultrathin aluminum shell — the keyring charger that fits the pocket
• 4,000mAh-class Grade-A core — 500+ cycles, documented
• Battery indicator — the reserve visible at the keys
• Triple protection suite — voltage, current, short-circuit
• Slim-retail fit — merchandised beside the card holders

Specifications — Typical Configuration (customizable per order)

• Capacity: 4,000mAh class (3,000–5,000 on request)
• Cell: Li-polymer / Li-ion, 500+ charge cycles
• Shell: ultrathin aluminum keyring shell
• Battery: Grade-A Li-polymer, 500+ cycles
• Protection: over-voltage / over-current / short-circuit
• Certification: CE / RoHS / FCC · Warranty: 12 months

Final configuration confirmed with you before order confirmation.

Customization & Ordering

Engrave the brand, confirm the thickness spec, quote the run. Sampling in 5–7 days, FOB Shenzhen.