Technical report estimating the battery life of an. It can power a wide range of devices including a smoke alarm, quadcopter, or drone. Sony code 49928190 sony energy devices corporation device solutions business group sony corporation lithium ion rechargeable battery technical information revision 0. Dynamic lithiumion battery model for system simulation.
When the lithium ion battery with nickel cathode material and graphite anode is used, such materials have a sloping discharge curve, so that the remaining capacity can be easily indicated like as hard carbon anode battery. The murata vtc4 formerly sony is a flat top 18650 battery, ideal for building battery packs or for use in compatible devices. Temperature dependence of discharge curves us18650vtc6 180 160 140 120 80 60 40 20 20 3500 4. Google has many special features to help you find exactly what youre looking for. A 5c rate for this battery would be 500 amps, and a c2 rate would be 50 amps. Lithium ion rechargeable battery technical information. A 1e rate is the discharge power to discharge the entire battery in 1 hour. Oct 28, 2010 fully discharge the battery pack before storing and store it in a cool, dry place. Figure 5 shows the discharge of a nexelion battery compared to the conventional 14430 camcorder cell. For reference, also included in this plot is an experimental constant power p e 34 w discharge curve where both the voltage and current varied.
The sony operated at an overall higher wattage, had more capacity and a lower operating temperature. Samsung 30q high drain 18650 liion cells capacity test. The venerable sony vtc5 is it really a 30a cell, or did. Do not use ordinary constant current and constant voltage cccv power supplies. It is recommended to discharge the battery to less than 80 percent by disconnecting the ac adapter and using just battery power first before enabling the battery care function. Sony camera and camcorder battery information sony usa. A lithium polymer battery, or more correctly lithiumion polymer battery abbreviated as lipo, lip, lipoly, lithiumpoly and others, is a rechargeable battery of lithiumion technology using a polymer electrolyte instead of a liquid electrolyte. Why do people prefer sony vtc4 instead of vtc5 or vtc6. The vtc5a is in stock but i havent seen anyone with the vtc6a. Remaining capacity can easily be indicated using the discharge curve. One test was to determine the affects of overcharging a cell. The latest and probably last high current battery from sony and it was a very high capacity together with the high current. The sony vtc5 offers a 2600mah capacity rating and 20a cdr.
Sony does not approve using them in this application. A lithiumion battery or liion battery is a type of rechargeable battery. Oct 25, 2016 this curve is for 2 sony vtc6 18650 cells their capacity watt hours is 18. High conductivity semisolid polymers form this electrolyte. Battery cycle life is affected by many different stress factors including temperature, discharge current, charge current, and state of charge ranges depth of discharge. Lithium ion rechargeable batteries with lithium cobalt oxide cathodes and graphite anodes. Thus, we seek a general expression for the potential. Change in voltage profile for the sony 18650hc cell number 1 in test 2 12 10. This heritage in a positivelimited battery design results in.
Sep 17, 2008 my battery database tracks the inventories for illumn, imr batteries, liion wholesale, mtn electronics, and orbtonic. I should also note that these are the same two batteries and they have taken a beating on all these test. Sony 18650 liion battery test results ivan galysh gil dutchover jan 15, 2004 introduction three tests were conducted on the sony liion batteries. The use of any sony lithium ion rechargeable battery cell as a standalone product, including with ecigarettes, vaporizer pens, and other products, constitutes a dangerous misuse of the battery cells that poses a serious risk of personal injury or property damage. Temperature dependence of discharge curves us18650vtc520deg.
A 1c rate means that the discharge current will discharge the entire battery in 1 hour. It appears the site hosting these datasheets did run across a discharge graph for the vtc5 that goes all the way up to 40a, but youll note that at 25a temperature breaches 100c, 30a and 35a hover around 120c, and 40a hits 125c. There is no doubt this is a quality battery, the curves track perfectly and capacity is nearly constant with current. Discharge load characteristics us18650vtc4 0 500 1500 2000 2500 0. You can get different capacities at different wattages. The second test was to determine the affects of over discharging a cell. The carbon zinc battery uses a zinc anode, a manganese dioxide cathode, and an electrolyte of zinc chloride dissolved in water. Sony us18650vtc6 or just vtc6 is a high drain 18650 size liion cell which supports discharge rate up to 15a if no temperature control is used and up to 30a with 80c temperature cut. This time high capacity sony vc7 3500mah us18650vc7. The key to the superior specific energy is the high cell voltage of. The reason sony divested itself of the battery manufacturing is it apparently wasnt making them enough money to retain that part of the company. Jan 16, 2017 any discharge over a few milliseconds long is seen by the battery as just being a continuous discharge of a different length, whether 3 seconds or 33 minutes.
Calculation of constant power lithium battery discharge curves. It runs at a higher voltage than the aspire 1800mah, vtc45, 25r, and hd2c and runs for almost as long as the vtc5. Temperature dependence of discharge curves us18650v320deg. The third test was to determine if the cell can survive a short. Sonys original lithiumion battery used coke as the anode coal product. Coin type manganese lithium battery crccrrcr2 222032032032 2. These batteries provide higher specific energy than other lithium battery types and are.
The ohmic voltage drop in the case of the battery was around. The venerable sony vtc5 is it really a 30a cell, or did we. After vtc3, vtc4, vtc5, vtc6 sony decided to assign new model name vc7, and not vtc7. Sony murata vtc5 18650 2600mah 20a battery us18650vtc5. The sony vc3 is a lithiumion cell intended for use in high current 18650 battery packs. New 18650 battery is coming from sony energy production line. Jun 18, 2016 the sony vtc5a is a fantastic 25a 2500mah battery. Jul 08, 2014 i have tested the battery and compared it to a real sony vtc5. To use the battery pack up, leave the camera in slideshow playback mode until the power goes off. Since 1997, most li ion manufacturers, including sony, shifted to graphite to attain a flatter discharge curve. Please check to ensure proper sizings for battery compatibility. Sonymurata vtc5 20a30a 2600mah flat top 18650 battery. Performance of sony 18650hc lithiumion cells for various.
Introducing the new sony vtc6a, the latest 21700 sized 4000mah rechargeable battery from sony, featuring a nominal capacity of 4000mah providing ample power to high drain devices and box mods with each recharge. Amphours, is defined as the available current a battery can supply over a given time period. Lithium ion rechargeable batteries technical handbook. Graphite is a form of carbon that has longterm cycle stability and is used in lead pencils. Lithiumbased batteries information battery university. At high current the battery gets hot and i stopped the 20a and 30a test due to that. For people who need the battery curve csv for two sony vtc5a batteries brand new, below is my result from running battery analyzer. Average temperature for the sony 18650hc cells in test 1 at the end of charge and the end of discharge as a function of cycle number 10 8. For a battery with a capacity of 100 amphrs, this equates to a discharge current of 100 amps. This heritage in a positivelimited battery design results in batteries providing. Correlation application of step 1 of the constant current discharge curves in figure 5a yields figure 5b with n 0.
Shop our store for the lowest prices on genuine lithium ion rechargeable batteries including the sony. Wattage test can illustrate more accurately how the battery will perform in a regulated scenario. I can tell you that the sony seems to be as strong as the day i cracked it open it should be noted it actually performing better than when it was new while the efest seems to show some fatigue. You must verify polarity before connecting the battery to the host device or charger. Compare this to the vtc4 datasheet which shows discharge curves up to 30a but again, no explicit maximum listed. Capacity mah discharge a max charging a max chemistry. Sony vc7 18650 3500mah liion rechargeable battery flat top. The sony vtc3 is a lithiumion cell intended for use in high current 18650 battery packs.
Jun 01, 2018 sony s original lithiumion battery used coke as the anode coal product. Powdered carbon is used in the cathode mix, usually in the form of carbon black to improve conductivity of. Wholesale sony vtc3 buy cheap in bulk from china suppliers. Endof discharge voltages for 2002 sony 18650hc cells in test 2 11 9. Sony 18650 batteries are highly regarded for performance and safety. I want to do some more comparisons against other cells but this is probably one of the top three best 18650s. These are 21700 sized batteries and will not be compatible with most mods. Please include any necessary items in the operation manual of load equipment. Capacity can be measured directly during discharge by integrating current with respect to time. A 4step procedure is used to model the equilibrium potential based on experimental data. Dual 2s sony vtc5a battery curve batteries and charging. Super performance sony vtc4 battery at enticing deals. Do not expose the battery to water or salt water, or allow the battery to get wet. These do not protect the cell from being overcharged and over discharged.
The discharge capacity of the battery depends on the discharge rate and the temperature 20, 21. Powerextra battery 4pack and charger for sony npfw50 and sony alpha a6500, alpha a6300, alpha a6000, alpha a7 ii, alpha a7r ii, alpha a7s ii, alpha a5000, alpha a5100 digital camera 4. How to spot a fake sony vtc5 battery sun vapers san diego. The figure shows that the sony claim of 30% increased capacity for nexelion is accurate with the capacity here increasing form 0.
The nickelmetal hydride battery chemistry is a hybrid of the proven positive electrode chemistry of the sealed cadmium battery with the energy storage features of metal alloys developed for advanced hydrogen energy storage concepts. Continuouscurrent test results pulsedcurrent test results comments. Cell type cell name sony code cylindrical 49939240 sony energy devices corporation device solutions business group sony corporation. I can tell you that the sony seems to be as strong as the day i cracked it open it should be noted it actually performing better. Mar 29, 2019 the battery will remain at 100 percent charged if the battery care function is enabled while the notebook is connected to the ac power adapter. Using inr liion chemistry, these batteries have a 2,100mah energy capacity and are rated for a max 30a discharge rate. Lithiumion batteries are commonly used for portable electronics and electric vehicles and are growing in popularity for military and aerospace applications. Imho, the testing parameters i set for determining the continuous current rating, modeled after those used by samsung, sony, lg, and panasonicsanyo, are well chosen for determining the.
Purchase genuine us18650vtc5 cells from powerstream. Lithium ion rechargeable battery technical information revision 0. The battery stays charged at 100 percent even when. Sony vc7 18650 3500mah liion rechargeable battery flat. The great 30a shootout sony us18650vtc3 vs efest 30a. Correlation application of step 1 of the constant current discharge curves in. Here, you can find an extensive selection of sony vtc3, sony and other products offered by the biggest brands across the world. In addition, the life of the battery depends on the discharge rate current. The calculations include self discharge and worstcase circuit numbers. After battery is dischargeddont leave it dischargedcharge battery as soon as possible 10 min. Shop from the latest collection of amazing sony 7 and new sony mobiles at the cheapest prices in china. Sep 18, 2020 18650 lithium ion battery identification reference.
The sony vtc3 is a lithiumion cell intended for use in high current 18650. We offer more than 24 items across different product types to let you buy your favorite sony vtc3 at wholesale prices. For all those customers expecting this cell to be called vtc7 useful piece of info. Lithium ion rechargeable battery technical information kronium. So if murata takes a hard look and comes to the same conclusion as far as 18650 type batteries are concerned, its entirely possible that well have one less source for decent batteries. Powdered carbon is used in the cathode mix, usually in the form of carbon black to improve conductivity of the mix and for moisture retention.
The vtc3 ships from japan or hong kong to anywhere in the world. Sony vtc3 vtc4 vtc5, sanyo high drain 10a, 20a, 30a, 35a. A prototype liion battery was developed by akira yoshino in 1985, based on earlier research by john goodenough, m. Kastar 18650 intelligent rapid charger wcar charger for lg hg2 he2 he4 hd2, samsung 25r 26f 30q, panasonic ncr18650be ncr18650b ncr18650pf, sony vtc3 vtc4 vtc5, sanyo high drain 10a, 20a, 30a, 35a. The discharge rate is c6 as this is the rate required to power the camcorder. Caution on usage of lithiumion rechargeable battery 7. The resulting discharge curves are shown in figure 5a. This test was ran using a vaporshark vaporflask dna3 set to the maximum of 108 watts because of the 6v limit with. Search the worlds information, including webpages, images, videos and more. This makes really flat easy to understand discharge curves that are directly related to real world mech loads. To maintain the battery packs function, fully charge the battery pack and then fully discharge it on the camera at least once a year while storing. The battery was bought from my reliable supplier queen battery and tested with zketech ebca20 and a selfmade battery.
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