{"product_id":"molicel-p42a-21700-vape-battery","title":"Molicel P42A 21700 Battery INR 4200mAh Single Cell","description":"\u003cp\u003e\u003cstrong\u003eMolicel P42A 4200mAh 21700 battery\u003c\/strong\u003e is a \u003cstrong\u003erechargeable lithium-ion cell\u003c\/strong\u003e built for high-drain devices that need both strong output and long runtime. It \u003cstrong\u003eprovides 4200mAh nominal capacity\u003c\/strong\u003e, \u003cstrong\u003e30A continuous discharge\u003c\/strong\u003e, and a \u003cstrong\u003e3.6V nominal voltage\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis Molicel INR21700 P42A cell uses a flat-top, \u003cstrong\u003eunprotected 21700 format\u003c\/strong\u003e, measuring \u003cstrong\u003eroughly 21mm × 70mm\u003c\/strong\u003e. Its larger 21700 size gives it more energy capacity than many 18650 cells, while its 30A discharge rating works well in powerful devices such as \u003cstrong\u003evape mods\u003c\/strong\u003e, \u003cstrong\u003ebright torches\u003c\/strong\u003e, \u003cstrong\u003ebattery packs\u003c\/strong\u003e, and \u003cstrong\u003etesting projects\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eMolicel, the battery \u003cstrong\u003ebrand of\u003c\/strong\u003e \u003cstrong\u003eE-One Moli Energy\u003c\/strong\u003e, produces the P42A for consistent lithium-ion performance. The cell suits users who need a balance of capacity, current delivery, and reliable voltage behaviour under load.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose Molicel P42A 21700 4200mAh 45A Battery?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMolicel 21700 P42A 4200mAh 45A battery\u003c\/strong\u003e supports high pulse output up to 45A and maintains voltage stability under load.\u003c\/p\u003e\n\u003cp\u003eKey performance advantages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDelivers 30A continuous\u003c\/strong\u003e discharge for high-drain devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProvides 4200mAh capacity\u003c\/strong\u003e for extended usage cycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintains low internal resistance\u003c\/strong\u003e for efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports fast charging\u003c\/strong\u003e with controlled heat output\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis combination makes it a preferred cell for advanced vape users and engineers.\u003c\/p\u003e\n\u003ch2\u003eMolicel P42A 21700 Battery Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; border: 1px solid #e0b5ff;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #e0b5ff; color: #000;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left; border: 1px solid #e0b5ff;\"\u003eAttribute\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left; border: 1px solid #e0b5ff;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eMolicel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #faf5ff;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eINR21700 P42A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eBattery Size\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003e21700 (21mm × 70mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #faf5ff;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eCapacity\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003e4200mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003e3.6V to 3.7V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #faf5ff;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eMax Charge Voltage\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003e4.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eContinuous Discharge\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003e30A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #faf5ff;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003ePeak Pulse Discharge\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eUp to 45A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eChemistry\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eINR Lithium-ion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #faf5ff;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eTop Type\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eFlat Top\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eProtection\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eUnprotected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #faf5ff;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eRechargeable\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0982\/4200\/3290\/files\/molicel-p42a-21700-battery-specifications.webp?v=1779354639\" alt=\"Molicel P42A 21700 Battery Key Specifications\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eWhat Devices use the Molicel 21700 Vape Battery?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMolicel P42A 21700 battery\u003c\/strong\u003e powers high-drain electronics requiring consistent current delivery.\u003c\/p\u003e\n\u003cp\u003eHere is a list of compatible devices:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePowers vape mods with sub-ohm coils\u003c\/li\u003e\n\u003cli\u003eSupports high-lumen LED torches\u003c\/li\u003e\n\u003cli\u003eRuns cordless power tools\u003c\/li\u003e\n\u003cli\u003eEnables battery packs and prototypes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDevices requiring stable amperage benefit most from this cell.\u003c\/p\u003e\n\u003ch2\u003eHow Does Molicel P42A Compare to Other 21700 Batteries?\u003c\/h2\u003e\n\u003cp\u003eMolicel P42A balances capacity and discharge better than many competitors.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; border: 1px solid #e0b5ff;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #e0b5ff; color: #000;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left; border: 1px solid #e0b5ff;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left; border: 1px solid #e0b5ff;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left; border: 1px solid #e0b5ff;\"\u003eContinuous Discharge\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left; border: 1px solid #e0b5ff;\"\u003eUse Case\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eMolicel P42A\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003e4200mAh\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003e30A\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eBalanced performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #faf5ff;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eSamsung 40T\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003e4000mAh\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003e30A\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eHigh-drain focus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eLG M50LT\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003e5000mAh\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003e~15A\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0b5ff;\"\u003eHigh capacity, low drain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe P42A suits users needing both runtime and power output.\u003c\/p\u003e\n\u003ch2\u003eIs the Molicel P42A 21700 Battery Safe?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eYes\u003c\/strong\u003e, the Molicel P42A is safe when used within specifications. It \u003cstrong\u003eoperates between 2.5V and 4.2V\u003c\/strong\u003e and \u003cstrong\u003eperforms best below 30°C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eHere are steps to keep your equipment safe:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUse with proper battery management systems\u003c\/li\u003e\n\u003cli\u003eAvoid over-discharge below 2.5V\u003c\/li\u003e\n\u003cli\u003eStore near 3.6 to 3.7V for longevity\u003c\/li\u003e\n\u003cli\u003eInspect wraps and terminals regularly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Identify an Authentic Molicel P42A Battery?\u003c\/h2\u003e\n\u003cp\u003eAuthentic cells show consistent manufacturing traits.\u003c\/p\u003e\n\u003cp\u003eUse these checks to confirm your Molicel P42A battery is authentic:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNegative terminal\u003c\/strong\u003e shows a grainy metallic texture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive terminal\u003c\/strong\u003e has precise flat-top shaping\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter wrap\u003c\/strong\u003e includes clean, aligned printing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e remains around 65 to 70g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBuy only from \u003cstrong\u003everified UK suppliers\u003c\/strong\u003e \u003cstrong\u003eRoyal Vapery\u003c\/strong\u003e for authenticity.\u003c\/p\u003e\n\u003ch2\u003eFAQs About Molicel P42A 21700 Battery 4200mAh\u003c\/h2\u003e\n\u003ch3\u003eWhat is the capacity of the Molicel P42A?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMolicel P42A provides 4200mAh capacity\u003c\/strong\u003e, enabling longer runtime compared to standard \u003cstrong\u003e3000mAh to 3500mAh cells\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat is the maximum discharge of Molicel P42A?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003ebattery supports 30A continuous discharge\u003c\/strong\u003e and \u003cstrong\u003eup to 45A pulse\u003c\/strong\u003e \u003cstrong\u003eoutput\u003c\/strong\u003e under controlled conditions.\u003c\/p\u003e\n\u003ch3\u003eIs Molicel P42A good for vaping?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eYes\u003c\/strong\u003e, the Molicel 21700 vape battery \u003cstrong\u003esupports sub-ohm vaping\u003c\/strong\u003e due to its high current output and voltage stability.\u003c\/p\u003e\n\u003ch3\u003eWhat voltage does a Molicel 21700 battery use?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003ecell operates at 3.6V to 3.7V nominal\u003c\/strong\u003e and\u003cstrong\u003e charges up to 4.2V\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhere are Molicel batteries made?\u003c\/h3\u003e\n\u003cp\u003eMolicel batteries are \u003cstrong\u003eproduced by E-One Moli Energy\u003c\/strong\u003e, a \u003cstrong\u003eTaiwanese manufacturer\u003c\/strong\u003e with global distribution.\u003c\/p\u003e\n\u003ch3\u003eHow long does a Molicel P42A last?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003ebattery typically lasts 300 to 500 charge cycles\u003c\/strong\u003e, depending on usage patterns and charging conditions.\u003c\/p\u003e\n\u003ch3\u003eWhere can you buy Molicel batteries in the UK?\u003c\/h3\u003e\n\u003cp\u003eYou can buy \u003cstrong\u003eMolicel batteries\u003c\/strong\u003e such as the \u003cstrong\u003eP28A 18650 and P42A 21700\u003c\/strong\u003e from \u003cstrong\u003etrusted UK vape retailers\u003c\/strong\u003e like \u003cstrong\u003eRoyal Vapery\u003c\/strong\u003e, which offers authentic, high-drain lithium-ion cells suitable for vape mods and other devices.\u003c\/p\u003e","brand":"Molicel","offers":[{"title":"Default Title","offer_id":53734305071450,"sku":"Molicel P42A 21700 Single","price":6.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0982\/4200\/3290\/files\/molicel-p42a-21700-battery-inr-4200mah-single-cell.jpg?v=1776784667","url":"https:\/\/royalvapery.co.uk\/products\/molicel-p42a-21700-vape-battery","provider":"Royal Vapery","version":"1.0","type":"link"}