
( Brand: Trustfire ), ( Model: WF-139 ), ( Part Type: Battery Charger ), ( Compatible Battery Type S : 18650 14500 18500 17670 18650 )
The WF-139 Ultrafire Battery Charger is a versatile and reliable charging solution for various types of rechargeable batteries. Designed by Trustfire, a reputable brand in the battery and charging industry, this charger is specifically engineered to work with 17500, 14500, and 18650 3.7V Li-ion batteries.
The WF-139 boasts a user-friendly design with an LCD screen that provides clear and precise information about the charging process. The screen displays the voltage, current, and total charge time for each battery, allowing you to monitor the charging progress easily. The charger also features an intelligent temperature control system that prevents overheating, ensuring the safety of your batteries.
The WF-139 supports both single and multi-battery charging, with four individual slots for separate charging and two slots for simultaneous charging. Each slot is equipped with a smart IC chip that identifies the type and capacity of the battery, providing optimal charging conditions for each.
The charger supports both constant current and constant voltage charging methods, ensuring efficient and fast charging without damaging the battery's lifespan. It also features reverse polarity protection and short-circuit protection, adding an extra layer of safety.
The WF-139 Ultrafire Battery Charger comes with a USB cable for easy charging from various power sources, including computers, power banks, and wall outlets. It is compact and lightweight, making it an ideal travel companion for those who frequently need to charge their batteries on the go.
In conclusion, the WF-139 Ultrafire Battery Charger by Trustfire is a reliable, safe, and versatile solution for charging your 17500, 14500, and 18650 3.7V Li-ion batteries. Its intelligent features, user-friendly design, and wide compatibility make it a valuable addition to any electronics enthusiast's toolkit.
Pros of buying a WF-139 Ultrafire Battery Charger:1. Compatibility: The charger can charge various types of Li-ion batteries such as 17500, 14500, and 18650 batteries, making it a versatile option for many users.
2. Safety features: It has overcharge protection, over-discharge protection, and reverse polarity protection, ensuring the batteries are safely charged and preventing damage to the batteries or the charger.
3. Fast charging: It can charge batteries quickly, saving time for users who need to frequently charge their batteries.
4. Affordable: Compared to some high-end chargers, the WF-139 Ultrafire Battery Charger is relatively affordable, making it a cost-effective option for many users.
Cons of buying a WF-139 Ultrafire Battery Charger:1. Lack of advanced features: The WF-139 Ultrafire Battery Charger does not have advanced features such as temperature control or automatic charging, which some users may prefer.
2. Not compatible with all battery types: While it can charge various Li-ion batteries, it may not be compatible with all types of batteries, so users should check the specific compatibility before purchasing.
3. No display: The charger does not have a display, which can make it difficult for users to monitor the charging process or know the exact charging status of their batteries.
Conclusion:The WF-139 Ultrafire Battery Charger is a good option for users who need a versatile and affordable charger for their Li-ion batteries. Its safety features and fast charging make it a reliable choice, but users should be aware of its limitations, such as the lack of advanced features and display. Ultimately, the decision to purchase the WF-139 Ultrafire Battery Charger depends on the user's specific needs and preferences.
Recommendation:If you are looking for a reliable and affordable charger for your Li-ion batteries, the WF-139 Ultrafire Battery Charger is a good option to consider. However, if you require advanced features or a display, you may want to consider other options that may be more expensive but offer more features. Ultimately, it is important to choose a charger that meets your specific needs and budget.
Dual independent battery charging allows for rapid charge time. Specification:brand: ultrafire model: WF-139 voltage :3. Best performance with alternating high and low current which charges the batteries quickly until each battery reaches its cut-off voltage then this smart charger function conveniently shuts off automatically.
After fully, green led stays on. 2v 450maapplication: for rechargeable battery but not the one with protection board ,14500,18500,17670,17500 while charging, red and green lights flash alternately. Ultrafire dual bay lithium battery charger for this is the dual-channel standalone charger, different from previous chargers with two parallel charging channels.
It has more advantages and extra features. 7 input 1: ac 100-240v 50-60 hasn't 2: dc 12v 400maoutput: 4. Two battery channels are 100 independent from one another.
CPU controls intermittent pulses charging each channel.