It works, but it won't indicate battery FULL while it's plugged into wall power
The Ultrafire DX4 charger's LED light stays RED while charging (but it never turns GREEN while charging), but when you unplug the charger from the wall outlet, the LED light will glow GREEN if the battery inserted into the charger is fully charged.
UltraFire Brand FAQ
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Title
Q1: Do you really offer a three-year warranty?
A: Within 3 years of purchase, we provide after-sales service for any quality issues, including free repairs or replacements. Additional batteries, chargers, and purchased accessories are covered by a 1-year warranty.
A: Yes. Our checkout process uses encrypted, PCI-compliant payment systems. Your personal and payment information is always safe.
Q3: Do you really offer free shipping?
A: Yes! All orders ship free worldwide, with tracking included. No hidden fees.
Q4: How long does shipping take?
A: Shipping times vary by location. If your order is shipped from a local warehouse, delivery usually takes 2–5 days. For international shipping, most orders arrive within 7–15 business days. You’ll receive a tracking number once your order is on the way.
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