Small, USB-powered battery charger that manages common Li‑ion and Ni‑MH cells while showing charge status and errors. For owners of torches, vapes and everyday gadgets, the reassurance of clear status and built-in protections makes battery care straightforward. Is the Quwem Dual 18650 Battery Charger the portable companion needed for reliable rechargeable maintenance?
⚡ At a Glance
- • Charging Compatibility: Supports many 3.7V/3.6V Li‑ion sizes including 18650, 21700 and 26650, plus 1.2V Ni‑MH/Ni‑CD AA, AAA and C cells
- • Best for: Owners of flashlights, vapes and household electronics who need flexible recharging
- • Not ideal for: Users who want a fixed wall adapter rather than a USB-powered charger
Dual independent slots charge two batteries simultaneously or one at a time while an LCD displays voltage, charge percentage and errors. Built-in overcharge, overcurrent and short-circuit protections combine with CE and FCC certification for safer everyday use.
Charge Mixed Batteries Simultaneously - with Dual Independent Slots
Dual independent slots accept different sizes and chemistries, and each bay manages charging separately so charge currents and end conditions do not require matched cells. Spring-loaded contacts adjust to cell length and ensure proper electrical contact.
Users can charge a 18650 alongside an AA cell without matching sizes, saving time and removing the need to wait for identical batteries.
See Status at a Glance - with Smart LCD Showing Voltage and Percentage
A real-time LCD reports per-slot voltage, charge percentage and error messages, allowing quick assessment of each battery's condition. The display updates during charging so progress is visible without interrupting the cycle.
Owners can monitor charge progress and identify faulty cells early, removing guesswork and reducing the risk of overcharging.
Safe, Repetitive Charging - thanks to Built-in Protections and Certification
Integrated overcharge, overcurrent and short-circuit protection circuits cut charging if unsafe conditions appear, and CE and FCC certifications indicate compliance with common safety standards. USB power input isolates the charger from mains-only designs.
Safer charging extends battery life and provides peace of mind for frequent use, especially when travelling or swapping cells often.
✨ The 4 Key Reasons for Quwem Dual 18650 Battery Charger
- Spring-loaded contacts - Ensures firm grip and easy battery insertion and removal
- Smart LCD display - Shows voltage, percentage and error alerts in real time
- USB-powered design - Charges from power banks, laptops and USB adapters when travelling
- Safety certifications - Built-in protections with CE and FCC certification for safer charging
📋 Technical Details at a Glance
- Category: Battery charger
- Compatibility: 3.7V/3.6V Li‑ion (18650, 18500, 18490, 18350, 17670, 17500, 16340 (RCR123), 14500, 14650, 26650, 22650, 10440, 20700, 21700, 25500, 26500), and 1.2V Ni‑MH/Ni‑CD (AA, AAA, C)
- Slots: Dual independent slots, charge one or two batteries simultaneously
- Display: Real-time LCD showing voltage, charge percentage and errors
- Protections: Overcharge, overcurrent and short-circuit protection
❓ Frequently Asked Questions
Q: Can I charge two different battery sizes at the same time?
A: Yes, dual independent slots allow charging of different sizes simultaneously without matching cells.
Q: Will the charger show when a battery is fully charged or faulty?
A: The smart LCD displays voltage, charge percentage and error messages so charge progress and faults are visible in real time.
Q: Can I use a power bank or laptop to power the charger while travelling?
A: Yes, USB power input supports USB adapters, power banks and laptops for portable charging.
🏆 Our Verdict
Suitable for owners of torches, vapes and assorted household gadgets who need flexible, portable charging. Wide chemical and size compatibility combined with dual independent slots and an informative LCD makes everyday battery maintenance straightforward. With compact dimensions and built-in protections, the charger represents solid long-term value for regular rechargeable users.
