7/8/2023 0 Comments 18650 battery pulse ratingSome people seek pulse ratings, which are often fabricated. Note that this is the cell's maximum continuous discharge rating. Most people do not want to go below 2.5V for safety concerns, and if they do the low voltage environment does not provide ideal performance. (We see a similar parallel between the LG HE2 and HE4 fast discharge conditions). ![]() This 0.5V difference translates to a higher milliamp hour rating, but at expense of utility. Cells are to rest 10 minutes after charge and 30 minutes after discharge.Ģ.0V is considered the lowest possible safe cut-off voltage for discharging any 18650 cell. Cells shall be discharged at constant current of 10000mA and 20000mA to 2.0V. discharge values are as follows:Ĭells shall be charged at constant current of 4000mA to 4.2V with end current of 100mA. LG Chem’s testing conditions for rating Fast and Max. What is important to note is the cut-off voltage of 2.0V. The Fast discharge has been tested at both 10A and 20A. discharge testing conditions, nor did they take into account fast discharging conditions outlined by LG Chem in the spec sheet (see next section). ![]() This has likely led to the claims that the HG2 under performs. However many of these tests neither distinguished between the standard discharge vs. continuous discharge rating the capacity will be slightly reduced (watt hours more so). The nominal capacity of the HG2 is determined while discharging at these values. These are normal standard discharge values. However keep in mind that fast charging will decrease the cycle life of the HG2. (3.7V 18650 batteries are older, a standard of measurement was changed but actual voltage remains the same.)Ī 4A fast charge is also good. This is the standard voltage for all 18650 batteries. If you are interested in maximizing both amperage and capacity you should consider this cell because it doesn't get better at the moment. My comments on the HG2 specification sheet:ģ,000 milliamp hours is the highest capacity ever for a true high-drain (20A+) cell.
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