Specification BatteriesIncluded : 1 BatteriesRequired : 1 Brand : YELUFT BulletPoint1 : Reversed Polarity: These 8000mAh battery is designed with special reverse polarity (positive and negative terminals are in opposite positions to those of conventional batteries), so please be sure to check the direction of the device interface before installation to avoid damage due to the opposite connection. Please recognize the “+” and “-” markings on the battery side when installing BulletPoint2 : Safety and Reliability: Our product utilizes a cutting-edge, A-grade lithium battery system. Compared to others, it offers superior energy capacity and density, along with more stable discharge performance and an extended lifespan. Additionally, it meets the stringent UN 38.3 safety standards, ensuring both safety and reliability BulletPoint3 : Charging: It is recommended to charge with a current of 2A, charging to 4.2V with constant current, converting to constant voltage charging when charging to 4.2V, and finally setting at 0.02C cut-off current of 160mA, at which time the battery is fully charged. Charging with currents and voltages higher than recommended may cause problems with the battery's charging, discharging, mechanical and safety performance, and may cause heat generation or fluid leakage BulletPoint4 : Discharging: The discharge current must not exceed 3A, and the battery must be discharged within the ambient temperature range of -10℃~45℃. High current discharge will cause a sharp decrease in the battery cell capacity and cause overheating BulletPoint5 : Widely Application: With PH2.0 plug, these batteries can be used for RAKwireless WisBlock Meshtastic Starter Kit, Raspberry Pi UPS board or other projects BulletPoint6 : Storage: When the battery is not used for a long time, it may be in a certain over-discharge state due to its self-discharge characteristics. To prevent over-discharge, the battery should be charged regularly to maintain its voltage between 3.7V and 3.9V; over-discharge will lead to loss of battery performance and battery function Color : Only Battery CompatibleDevices : Watch CompatibleDevices1 : Watch CompatibleDevices2 : Headset CompatibleDevices3 : Toothbrush CompatibleDevices4 : Headset CompatiblePhoneModels : R9 ContainsBatteryOrCell : battery ExternallyAssignedProductIdentifier1 : 735279521085 ExternallyAssignedProductIdentifier2 : 0735279521085 Hazmat1 : LITHIUM ION BATTERIES Hazmat10 : DE_SmallLithiumIonBatteryStandalone Hazmat11 : EG_SmallLithiumIonBatteryStandalone Hazmat12 : ES_SmallLithiumIonBatteryStandalone Hazmat13 : FR_SmallLithiumIonBatteryStandalone Hazmat14 : GB_SmallLithiumIonBatteryStandalone Hazmat15 : IE_SmallLithiumIonBatteryStandalone Hazmat16 : IN_SmallLithiumIonBatteryStandalone Hazmat17 : IT_SmallLithiumIonBatteryStandalone Hazmat18 : JP_SmallLithiumIonBatteryStandalone Hazmat19 : MX_SmallLithiumIonBatteryStandalone Hazmat2 : UN3480 Hazmat20 : NL_SmallLithiumIonBatteryStandalone Hazmat21 : PL_SmallLithiumIonBatteryStandalone Hazmat22 : SA_SmallLithiumIonBatteryStandalone Hazmat23 : SE_SmallLithiumIonBatteryStandalone Hazmat24 : SG_SmallLithiumIonBatteryStandalone Hazmat25 : TR_SmallLithiumIonBatteryStandalone Hazmat26 : US_SmallLithiumIonBatteryStandalone Hazmat27 : ZA_SmallLithiumIonBatteryStandalone Hazmat28 : 9 Hazmat3 : II Hazmat4 : AE_SmallLithiumIonBatteryStandalone Hazmat5 : AU_SmallLithiumIonBatteryStandalone Hazmat6 : BE_SmallLithiumIonBatteryStandalone Hazmat7 : BR_SmallLithiumIonBatteryStandalone Hazmat8 : CA_SmallLithiumIonBatteryStandalone Hazmat9 : CN_SmallLithiumIonBatteryStandalone IncludedComponents : Battery ItemName : YELUFT 1pcs 3.7V 8000mAh Lithium Polymer Rechargeable Battery with Integrated Protective Board and PH2.0 Plug Compatible with WisBlock Meshtastic, Raspberry Pi UPS (Reversed Polarity) ItemPackageDimensions_Height : 13.1064 centimeters ItemPackageDimensions_Length : 3.2004 centimeters ItemPackageDimensions_Width : 8.4074 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : 3.7v-batteries Manufacturer : YELUFT ModelName : CN-VK21-CL25 ModelNumber : 102050 NumberOfItems : 1 NumberOfLithiumIonCells : 1 NumberOfLithiumMetalCells : 1 PackageLevel : unit PartNumber : a2021012125 ProductDescription : 3.7V 8000mAh Lithium Polymer Rechargeable Battery with Integrated Protective Board and PH2.0 Plug Compatible with WisBlock Meshtastic, Raspberry Pi UPS (Reversed Polarity) ProductSiteLaunchDate : 2024-12-27T07:49:01.821Z RecommendedUsesForProduct : Gaming Console,Gps,Watch RecommendedUsesForProduct1 : WisBlock Meshtastic Starter Kit RecommendedUsesForProduct2 : Raspberry Pi UPS Board Reusability : Rechargeable SafetyDataSheetUrl : https://www.bornmieo.com/product/MSDS.pdf Size : 1 SkipOffer : 1 Style : Flashlight SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredDgHzRegulation1 : transportation SupplierDeclaredDgHzRegulation2 : storage SupplierDeclaredDgHzRegulation3 : other SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1 UnspscCode : 26111701 Voltage : 3.7 volts WarrantyDescription : No Warranty