![]() ![]() This happens commonly on eBay and Amazon. Vendors, especially overseas, tend to buy cheap cells and then rewrap them to appear like name brands. To see how other cells have tested check out this link: …/list-of-battery-tests.Just like any product you purchase, you need to be wary of fakes. Please, never assume that the ratings in the table are permanent and will never change! Always download the latest version before considering any cell purchase. Never exceed the battery’s continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.Īny rating in the tables can change at any time as different grade cells appear on the market or we get swamped with fakes. They are not meant to be used outside of a protected battery pack. Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of personal injury or property damage. Any battery that is not a genuine Samsung, Sony, LG, Panasonic, or Sanyo can change at any time! This is one of the hazards of using “rewrapped” batteries or batteries from other manufacturers so carefully research any battery you are considering using before purchasing. These tests only note the estimated ratings for these batteries at the time I tested them. The 18650 rating table has been updated with the 15A/20A rating for this cell.Ī “shootout” of the HG2, 30Q, and VTC6, directly comparing their performance, will be posted in a few days.įour cells were purchased for the purposes of testing by me. The 20A rating is any type of discharge as long as the 75☌ limit is not reached. This is not a “pulse rating”! There is no pulse length, time between pulses, or criteria used for setting such a rating being defined. I am giving this cell a continuous current rating of 15A (about 45W using 3.7V) and a temperature-limited rating of 20A (about 60W if using 3.7V) as long as the cell is never allowed to reach 75☌. At higher current levels the voltage sag and power loss in the cell are huge. It is a high capacity “energy” cell designed for low to moderate power levels and long running time. Operation at that level can be done as long as we don’t let the battery get above 75☌, its maximum rated operating temperature.īut this is not a high performance “power” cell, designed for high current. The Samsung 30Q datasheet (Section 7.9) mentions operation at 20A. More info about this repost of these test results: The four cells I tested, two from IMRBatteries and two from Illumn, showed the expected great consistency in performance. Samsung 30Q 3000mAh 18650…a great 15A/20 battery!īottom Line: This is a retest of the popular Samsung 30Q. You can store them for 1.5 years at -30 to + 25 degrees C, 3 months at 30 to 45 C and 1 month at 30 to 60 C (in other words, store them in a cool place and they'll last longer).Operational Discharging Temperature Range: -20 to +75 degrees C (best below 60 degrees C).Operational Charging Temperature Range: 0 to 50 degrees C (best below 45 degrees C).(Max) Rapid Charge: CC/CV 4amps / 4.20 volts +/.Standard Charge: CC/CV 1 amp / 4.20 volts +/.Cycle info: Capacity drops to 60% after 250 full charge/discharge Cycles.Max Continuous Rated Discharge: 15 amps (at 25 degrees C).Samsung INR18650-30Q 3000mAh Battery - Flat Top ![]()
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