Make a simple and practical lithium battery charger, change the resistance of 4 ohms in the figure to change the charging current, D1 is the power indication, D2 is the charging indication and current limit. During debugging, the 6.8K resistor is replaced with a 10K trimmer resistor. When the battery voltage is monitored to 4.2V with a digital meter, the 10K trimmer resistor is adjusted.
Fume EXTRA is a pre-filled Disposable Vape pen that lasts 5 times longer than traditional 300-puff e-cigarette devices. The plus-size disposable vaping kit generates 1500 hits of 5% strength salt nicotine flavor. Each one-use vaporizer is powered by a built-in 850mAh battery and pre-loaded with 6ml of vape juice. Enjoy EXTRA hits without breaking your wallet. Shop All 24 Fume flavors today.
Fume Ultra.Fume Ultra 2500puffs.Fume Ultra disposable vape,Fume Ultra vape,fume vape.
Shenzhen Ousida Technology Co., Ltd , https://www.osdvape.com