2x Samsung 50E INR 21700 5000mAh Lithium Li-Ion rechargeable batteries with CASE

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Seller: Top-Rated Seller supersports600 (14,321) 100%, Location: Allambie Heights, NSW, Ships to: AU, Item: 273436780531 Please read everything below before you bid!!! You must understand the dangers of Li-ion cells before using them. Visit batteryuniversity.com to learn more. © SUPERSPORTS600 2018 2 x Samsung INR21700-50E 5000mAh Flat tops, rated at approx 10 Amp continuous dischargePlus a free case Specifications● Model: INR21700-50E ● Nominal Capacity: 5000mAh ● Minimum Capacity: 4900mAh - Charge : 0.5C(2450mA), 4.2V, 0.02C(98mA) cutoff @ RT - Discharge : 0.2C(980mA), 2.5V cutoff @ RT * 1C=4900mA ● Nominal Voltage: 3.6V ● Charging Method: CC-CV ● Charging Voltage: 4.2V ● Standard Charging Constant Current: 2450mA ● Standard Charging Time: 3hours ● Standard Charging End Current: 98mA ● Maximum Charging Current: 4900mA(not for cycle life) ● Discharging Cut-off Voltage: 2.5V ● Maximum Discharge Current - For Continuous Discharge: 9800mA - Not For Continuous Discharge: 14700mA ● Cycle Life: Capacity ≥ 3,802mAh @ after 500cycles(80% of the Rated Discharge Capacity @ RT) - Charge:0.5C(2,450mA),4.2V,CCCV0.05C(245mA) cut-off @ RT - Discharge: 1C(4,900mA), 2.5V cut-off @ RT ● Weight: Max. 69g ● Maximum Dimensions: D-20.25mm, L-70.80mm ● Storage Temperature: -20 to +60° CMade in Korea Be sure to add me to your favourites list! FREE POSTAGE FROM SYDNEY FOR ANY QTY PURCHASED. SENT in padded box by PARCEL POST OR COURIER depending on location. Pickup welcome. (Beacon Hill) Note: They are not AA or AAA and they require a Li-ion charger They are not 18650s, they are 21700 size. If you would like an extra battery to make an odd quantity, leave a messageQUESTIONS? Please do not hesitate to contact me via eBay or Mob: 0411191352 WARNING: Use caution when working with Li-ion cells, they are very sensitive to charging characteristics and may explode if mishandled or used in any way not intended by the manufacturer. Make sure the user has enough knowledge on Li-Ion rechargeable batteries in charging, discharging and assembly before use. Put the batteries in fire-proof container when charging Never leave batteries unattended when charging Do not put batteries on wood surface or carpet when charging Protective Circuit Board is required when making packs. Lithium-Ion batteries may explode or catch fire if mistreated. Do not apply heat, crush, damage or modify. Do not drop, incinerate or reverse polarity Do not charge or discharge beyond manufacturers specified current or voltage Disposal must only be at battery recycling depot. If you bid or buy, you agree that you and the user have adequate knowledge in handling batteries of this type and you agree that I will not be held liable for any damage or injury of any kind caused by these batteries. In saying the above, Panasonic is another company that are renowned for quality and safety and Panasonic has incorporated many safety features. They are much safer than most of the other similar batteries sold on ebay. ALWAYS FOLLOW THE MANUFACTURERS INSTRUCTIONS AND RECOMMENDATIONS FOR USAGE AND APPLICATION. Some Tips for safer usage and prolonging the life of common types of Li-ion batteries. Firstly, get yourself a voltmeter. Never let a Li-ion battery go below the minimum allowable voltage, which is 2.5Volts or 2.75Volts depending on the battery model. Doing so, even for brief periods will permanently damage the battery. It will irreversibly reduce its safety and storage capacity. Dendrites or shunts begin to form between the electrodes inside the cell which could eventually lead to partial or complete internal shorts. They grow like crystals and a combination of factors could lead to eventual failure. Some factors increasing the likelihood of this happening are the age of the battery, the number of cycles the battery has undergone, the extent and frequency of over discharge, and the charge / discharge currents used. Li-ion packs that have been under stress are more sensitive to mechanical abuse, such as vibration, dropping and exposure to heat. Lithium-ion operates safely within the designated operating voltages; however, the battery becomes unstable if inadvertently charged to a higher than specified voltage. Prolonged charging above 4.30V forms permanent plating of metallic lithium on the anode, while the cathode material becomes an oxidising agent, loses stability and produces carbon dioxide (CO2). The cell pressure rises, and if charging is allowed to continue the current interrupt device (CID) responsible for cell safety disconnects the current at 200psi. Sometimes there may be warning signs of a failing battery and these can include fast self discharge or excessive heat while charging. If this happens or if you have overcharged or over discharged the battery, do not use and send the battery to a recycling depot. The better and newer types of Li-ion batteries include more safety features. Visit Battery University on the internet for more information. Do not abuse Li-ion batteries. Over charging / discharging, excess heat and mechanical abuse are a few things that can lead a battery to thermal runaway. Once this process begins, it cannot be stopped. During thermal runaway, the battery may very rapidly exceed 150DegC and the pressure inside could rise to 500psi. At this point, a safety membrane will burst letting the battery undergo controlled rapid venting with flames. If the device it is installed in leaves nowhere for the pressure to go, the device could explode. The following examples are an approximate guide only. Example 1. Sanyo UR18650F 2600mAh, minimum Voltage is 2.75Volts. At a 3amp continuous discharge, when the voltage under load reaches 2.75 volts, the load must be disconnected. 10 seconds after disconnection, the battery will show approx. 3.4 volts. One minute after disconnection, the voltage will rise to approx 3.5 volts. 24 Hours after, it will show approx. 3.6volts. At 3.6V 24 hour resting, the battery is 98% depleted. It will have approx 50ma remaining capacity and should be recharged before use.At 3.5V 24 hour resting, the battery is 100% depleted and any use without recharging will permanently damage the battery. At 0.5A discharge, the numbers are approx 3.1v, 3.2v and 3.5v respectively. Example 2. Panasonic NCR18650A 3100mAh, minimum Voltage is 2.5Volts. At a 3amp continuous discharge, when the voltage under load reaches 2.5 volts, the load must be disconnected. 10 seconds after disconnection, the battery will show approx. 3.1 volts. One minute after disconnection, the voltage will rise to approx 3.2 volts. 24 Hours after, it will show approx. 3.35volts. At 3.35V 24 hour resting, the battery is 98% depleted. It will have approx 50ma remaining capacity and should be recharged before use.At 3.3V 24 hour resting, the battery is 100% depleted and any use without recharging will permanently damage the battery. At 0.5A discharge, the numbers are approx 2.8v, 3.0v and 3.3v respectively. The rated cycle life is for full charges and discharges. If you do partial cycles, say from 3volts to 4.05volts, you will get around 3 x the number of useful cycles. Li-ion batteries deteriorate with age. If stored room temp at half charge, the permanent capacity loss is 2% per year. If stored at full charge, they can deteriorate 20% per year. Higher temperatures increase and lower temperatures reduce this. They are shipped from the factory at optimal charge for storage. © SUPERSPORTS600 2017 Condition: Brand New, Model: INR2170050E, Battery Type: Rechargeable, Chemical-Composite: Li-Ion, MPN: inr2170050E, Battery Size: 21700, Brand: Samsung, Product Type: Batteries, Amp Hours: 5 Ah, Chemical Composition: Li-Ion, Voltage: 3.7 V

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