{"product_id":"ogniwa-samsung-inr21700-50s-4900mah-50s-35a","title":"Samsung INR21700-50S 4900mAh 50S 35A cells","description":"\u003ch2\u003eLi-ion battery information:\u003c\/h2\u003e\n\u003cp\u003eCapacity: 5000mAh\u003cbr\u003e\nNominal voltage: 3.6V - 3.7V\u003cbr\u003e\nEnd-of-charge voltage: 4.20V ± 0.05V\u003cbr\u003e\nMaximum discharge current: 35A\u003cbr\u003e\nMinimum discharge voltage: 2.5V\u003cbr\u003e\nPositive terminal: Flat\u003cbr\u003e\nChemical type: Li-ion\u003cbr\u003e\nProtection circuit: None\u003cbr\u003e\nDiameter: 21.25mm\u003cbr\u003e\nHeight: 70.62mm\u003cbr\u003e\nWeight: 72.7g\u003c\/p\u003e\n\u003cp\u003eThe high-current Samsung cell is a novelty on the market, distinguished by its ability to withstand high currents with low resistance of 11.67mR. Its load capacity is comparable to the Samsung 40T series 3 cell, while offering 20% greater capacity.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOur independent tests conducted with the Pulsar 3+ WiFi tester showed that at a 20A load, the cell reaches a temperature of 53°C, generating a capacity exceeding 5000mAh with minimal voltage drops. The test was conducted on a cell charged to 4.2V and concluded at 2.5V. Further studies showed that at a 25A load, the cell does not perform well enough. Although the manufacturer allows operation up to 80°C, optimal performance is achieved at temperatures up to 65°C. For battery packs, the continuous current for a single cell should not exceed 22A. For higher currents, temperature control and BMS cut-off in case of cell overheating are recommended. We recommend protection up to 80°C for a single cell and a maximum of 70°C for cells connected in a pack.\u003c\/p\u003e\n\u003ch2\u003eSafety information:\u003c\/h2\u003e\n\u003cp\u003eDo not place the battery in a charger or device with incorrectly connected terminals.\u003cbr\u003e\nNever short-circuit the battery. Avoid accidental contact with metal objects such as keys.\u003cbr\u003e\nDo not deform or disassemble the battery. If the battery is deformed, dispose of it immediately.\u003cbr\u003e\nDo not immerse the battery in water.\u003cbr\u003e\nAvoid excessive shock or vibration.\u003cbr\u003e\nDo not expose the battery to fire or dispose of it in fire.\u003cbr\u003e\nKeep out of reach of children.\u003cbr\u003e\nUse only original, undamaged chargers.\u003cbr\u003e\nDo not leave the battery in the charger for more than 12 hours.\u003cbr\u003e\nStore the battery in a cool, dry, and well-ventilated place.\u003cbr\u003e\nDispose of in accordance with local regulations.\u003cbr\u003e\nDo not solder these cells.\u003c\/p\u003e","brand":"SAMSUNG","offers":[{"title":"Default Title","offer_id":58046207099205,"sku":null,"price":19.99,"currency_code":"PLN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/7812\/2565\/files\/2b9a029d1a45675715c40fcda60bde04.jpg?v=1779638577","url":"https:\/\/evzero.eu\/en\/products\/ogniwa-samsung-inr21700-50s-4900mah-50s-35a","provider":"EVzero","version":"1.0","type":"link"}