INR21700-40T Samsung Lithium Ion 3.6V 21700 Lithium Ion (LiIon) Cylindrical 3.6V 4Ah INR21700-40T
Samsung INR21700-40Q Lithium Ion cylindrical battery. High capacity: 4000mAh (min. 3900mAh) High drain: max. continuous discharge current 35A High temperature: operating temperature - Charge = 0°C to +45°C; Discharge = -20°C to +60°C Important Information Regarding Rechargeable Lithium Cells - LITHIUM ION (LiIon) & LITHIUM IRON PHOSPHATE ( LiFePO4 )
Single unprotected cells are available to recognised customers. For safety information please read the Lithium Battery Safety document PLEASE NOTE: All lithium rechargeable cells/packs supplied by Mi Battery Engineering without a Protection Circuit Module (PCM) will require a duly signed Product Indemnity Waiver (PIW) CLICK HERE TO DOWNLOAD Do not attempt to charge these batteries using chargers for nickel based batteries or any charger not specifically designed for rechargeable lithium technology. This cell is manufactured for use in a battery pack assembly. It is not intended for use without a protection circuit. For equipment designed to use individual cells a protection circuit can be incorporated. Mi Battery Engineering 's current range of protected lithium ion cells can be viewed on this page .
Lithium ion cells can be assembled into single or multi-cell battery packs by authorised pack assembly centres such as our company that have been approved for safety circuit assembly and Lithium Ion pack design. For information on the safety circuits, more commonly known as a PCM , please click here or follow the links to browse Mi Battery Engineering 's range of available PCM's for Lithium Ion and Lithium Iron Phosphate .
Mi Battery Engineering can also provide advice and components for intelligent Battery Management System's (BMS) addtional to or incorporating PCM's. It's recommended that battery packs especially those featuring complex series/parallel cell assemblies incorporate a BMS in their construction.
For further information please consult our sales engineering staff. For battery pack design enquiries please contact us with your requirements. If you already have some parameters please click here for a Battery Application work sheet & email it to us.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.