Chem c3000 near me
There should be no rust, discoloration, spots, burn-marks, excessive scratch marks, or anything else out of the ordinary. Note there are four top-cap connection points on LG 18650 batteries. Here is the top-cap, or positive terminal of the HG2. Never charge below freezing (important for the solar readers: always keep your batteries in a temperature controlled environment.).None of the big three (Panasonic, LG, Samsung) make an 18650 battery rated at over 30A. A cell rated at anything above 30A, without an attached unit of time is, in essence meaningless. An example of a proper pulse rating would be 30 amps for 2 seconds. Without stating time, pulse lacks meaning. Remember: a pulse is defined as current over time. Some 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. Determine whether the HG2 deserves a noble title.Take a look at the HG2 specification sheet.To test that claim, I'll do the standard Battery Bro review: It's for that reason I am not crowning the HG2 as the new king on specs alone. That can be due to a number of reasons including a quick upgraded release, unforeseen safety problems, supply chain insecurity, market ignorance, and so forth. That said, there are many cases where the newest 18650 battery with the latest specs never gains mass adoption. That means, taking into account the battery specs and LG Chem's release schedule, the LG HG2 will likely be a good contender for one of the best 18650 batteries for some months to come for high-drain applications. An average of between 6% and 10% increase in battery performance is expected, compounding yearly. LG Chem is on a rolling schedule of releases and research, all planned years in advance.
#Chem c3000 near me upgrade#
The LG HG2 can be seen as a 500mAh capacity upgrade from its predecessors the HE2/HE4 which also have a 20A discharge limit. A battery that can both be high-drain, and high-capacity is just what everyone wants. A 20 amp, 3000 mAh milestone is, in some way a holy grail of stats. While the original release of the LG HG2 was in 2014, production has become available in Summer 2015. This is LG's new brown battery - the LG HG2 Overview