EBL 18650 3000 mah battery review скачать в хорошем качестве

EBL 18650 3000 mah battery review

Capacity came in at: test1: 2137mah 2179mah 2166mah 2219mah test2: 2064mah 2112mah 2126mah 2133mah test3: 2128mah 2183mah 2160mah 2217mah test4: 2100mah 2161mah 2146mah 2188mah ====================================== the below tests don't align with batteries above (below all 1 amp charging) 12/04/2016 test5: 2170mah 2156mah 2144mah 2142mah 04/07/2017 test6: 2163mah 2150mah 2143mah 2152mah 05/03/2017 test7: 2153mah 2060mah 2137mah 2155mah approx cycles 40 06/05/2017 test8: 2205mah 2146mah 2160mah 2115mah used in power bank, approx 50 cycles. 08/01/2018 test9: 2039mah 2048 mah 2001mah 2014mah used only about 5 more cycles (55). Had it sitting unused and drained for long period in center console glove box. Temperatures may have reached 160F due to 110F heat and windows rolled up. Plastic power bank even bent due to heat. The price at ebay is $1.58-$1.76(free shipping) for a new battery which makes them near best capacity to dollar if capacity holds up. Short circuit protection not tested. Comes with battery cases as shown near end. Seems there is some type of protection circuit in there as batteries are longer. Tests on amazon show 4.5 star rating with 300+ reviews (over multiple item listings). capacities range from 2000-2300. Most around 2100-2200. But, someone on amazon got 2800 so maybe they need to breakin or a different capacity tester? 1000/(2.1ah*3.7V)*$1.5/battery=$193 per kwh I am not saying if the battery is good or bad just reporting capacities. Also note it is said charging 18650 cells to 4.2 volts give 400 cycles, 4.1v 800 cycles, doubling each .1 volts. I performed a discharge test using a $5 capacity tester on ebay. The charge cycle ended at 3.3V however the voltage at battery was higher. Seems the tester might get the battery voltage after resistors since tested battery voltage will be higher. Then ending voltage might be 3.36V or higher. .2 discharge rate. 4.2 2.077 mah 400 cycles 3.1 kwh $.58/kwh 4.1 1.955 mah 800 cycles 5.8 kwh $.31/kwh 4.0 1.633 mah 1600 cycles 9.7 kwh $.19/kwh 3.9 1.274 mah 3200 cycles 15.1 kwh $.12/kwh 3.8 1.038 mah 6400 cycles 23.9 kwh $.075/kwh Thus if you only charge to 3.8 volts, you can store electricity at $0.075 or seven and a half cents a kilowatt hour. This assumes the 3.36 low volts does not hurt battery. It also assumes cycles double with a .1 drop in terminal voltage. Thus, the best voltage to charge your batteries to might be 3.8 volts. Although the military optimal terminal voltage is 3.92V. Based on info at battery university. note: this battery has a strange resemblance to Trustfire 3000 mah protected which had poor reviews. However, most tested that battery at 750 mah. note: EBL makes this battery in 26650 and capacity tested above 4950mah for both tested.