OSELTECH 3800 MAH 18650 3.7V Li-Ion Rechargeable Battery (Pack of 2) The OSELTECH 3800 mAh 18650 3.7V Li-Ion Rechargeable Battery is a powerful and long-lasting battery, perfect for devices that need a lot of energy. It has a 3800 mAh capacity and is built for high-power use. The name "18650" refers to the battery's size (18mm x 65mm) and cylindrical shape. This battery can handle 300-500 charge cycles, making it a reliable choice for many different uses. Package Includes: 2 x OSELTECH 3800 MAH 18650 3.7V Li-Ion Rechargeable Battery Specifications: Specification Details Energy Density High Voltage High working voltage for single cell Environmental Impact Pollution-free Cycle Life Long (300-500 charges) Memory Effect No memory effect Consistency Good capacity, resistance, and voltage consistency Self-Discharge Low Size Lightweight, small size Shape Cylindrical Battery Type Lithium-Ion Performance High capacity and performance Top Type Flat top for easy fitting Weight 85g

Witty Fox 3.7V 7000mAh Li-Ion Battery This is 3.7 volt lithium ion battery of 7000 mAh, the Li-ion battery is one of the most modern battery technologies available. Lithium ions are the primary element in its electrochemistry. Lithium can easily pass through a micro-permeable separator because of its extremely small size (third in size only to hydrogen and helium). Lithium ion batteries are therefore capable of having a very high voltage as well as high charge storage per unit of mass and volume. This is compatible with TP4056 Lithium Battery Charging Board This 3.7 volt 7000 mah lithium ion rechargeable batteries are widely used in GPS , DVD, Tablet PC, Development boards like arduino , BBC micro:bit , MP4 Player, Power Bank, Mobile Backup Power Supply, Electric toys , Bluetooth Speaker, IOT and Industrial applications. This 3.7V 7000 mAh Li-ion battery is from the brand Witty fox which is invented by TIF Labs. Witty fox is a range of cutting-edge products designed to make prototyping easier for you. A broad variety of items are available, including Li-Ion Batteries, Witty Fox ESP32 Storm Board with support for battery charging ,Witty Fox - ESP32 Storm Board with On-Board Li-ion Battery & Wireless Programming , Witty Fox ESP Programmer, Witty Fox S17021 humidity temperature sensor, and Witty Fox OPT3001 ambient light sensor. Read our blog explaining the comprehensive comparison between li-po vs li-ion, Covers aspects like energy density, cost, size, safety, and includes a helpful comparison table FEATURES: Pack over-voltage Protection Pack under-voltage Protection Over voltage Protection, CELL Under-voltage Protection, CELL Over Load Protection Over current Protection Short circuit protection Reverse Polarity Protection PACKAGE INCLUDES: 1 x Witty Fox 3.7V 7000mAh Li-Ion Battery BATTERY SPECIFICATIONS: Brand Witty Fox  Voltage 3.7V Battery Capacity  7000 mAh Battery Type Lithium-Ion Battery Dimension(L x W x H)  67 x 55 x 20 mm Connector Dimension(L x W x H) 9 x 7 x 5 mm Weight  168 grams

3.7V 1500mAh 18650 Battery This 3.7V cylindrical Li-ion rechargeable battery, known as the 18650 battery, offers a power current capacity of 1500mAh. With its reliable performance and long service life, it can be recharged repeatedly. The battery features plastic insulation on its outer part, while its inner part is constructed from high-carbon steel to provide protection against bursting and overheating. These characteristics make the 18650 li ion battery highly sought after due to its affordability and low maintenance requirements. If you seek a strong, reliable, and cost-effective battery with a capacity of 1500mAh, this option may be the ideal choice for you.

Witty Fox 3.7V 10000mAh Li-Ion Battery This 3.7v Lithium-Ion battery is a very slim, extremely lightweight battery based on the new polymer lithium-ion chemistry. This is the highest energy density Li ion battery currently in production. Each cell outputs a nominal 3.7v. These  Li ion batteries require special charging. Do not attempt to charge these with anything but a specialized Lithium-Ion battery charger. Battery includes built-in protection against over-voltage, over-current, and minimum voltage. Please use caution when using this battery in wearable projects. A short in the thread can create sparks and heat when using conductive thread. Applications: GPS DVD Tablet PC MP4 Player Power Bank Mobile Backup Power Supply Bluetooth Speaker IoT Industrial applications. PACKAGE INCLUDES: 1 x Witty Fox 3.7V 10000mAh Li-Ion Battery SPECIFICATIONS: Brand Witty Fox  Voltage 3.7V Battery Capacity  10000 mAh Internal Resistance 25-35mΩ Charging Regulated DC, CCCV 4.2V Self–Discharge < 2% per month Battery Type Lithium-Ion Battery Dimension(L x W x H) 74 x 70 x 20mm Connector Dimension(L x W x H) 9 x 7 x 5 mm Weight  193 grams

3.7V 2900mAh 18650 Battery 3.7V 2900mAh 18650 High Performance Rechargeable Battery, a solution for those seeking long-lasting, reliable power. This 3.7V 2900mAh Li-Ion battery with 18650 cells is perfect for various devices, from lithium iron battery packs to Ryobi tools and robotic vacuums like Ecovacs Deebot T8. Crafted with cutting-edge technology, it guarantees optimal performance, making it a top choice for tech enthusiasts. Made with precision and durability in mind, this rechargeable battery is suitable for diverse conditions and applications. Its user-friendly design ensures easy usage and maintenance, with a unique feature that adds to its appeal.

18650 3.7V 3800mAH Rechargeable Lithium Ion Battery with Header (Pack of 2) The 18650 3.7V 3800mAh Rechargeable Lithium Ion Battery with Header (Pack of 2) is a reliable power source for devices that need 3.7V and high capacity. These batteries are commonly used in items like vape devices, flashlights, and hobby transmitters. With a 3800mAh capacity, they offer long-lasting power. The batteries are tested to ensure they are in good condition and ready for use. This pack includes two batteries, making it a great choice for various projects. Package Includes: 2 x 18650 3.7V 3800mAH Rechargeable Lithium Ion Battery Specifications: Specification Details Model 18650 Nominal Voltage 3.7V Capacity 3800mAh External Dimension 18mm x 65mm Charge Voltage 4.2±0.05V Rechargeable Yes Operating Temperature Range -20°C to +85°C Used Condition New (Original - Super Power battery)

3.7v 2500mah 18650 Li-Ion Battery 18650 battery is a Li-ion rechargeable battery with a 2500 mAh Battery Capacity. This is not a standard AA or AAA battery but is very useful for applications that require continuous high current or high current in short bursts like in cameras, DVD players, iPod, etc. This 3.7V 2500mAh 18650 lithium ion battery is safe to use, environment friendly and has long battery life. 18650 battery comes with high energy density and provides excellent continuous power sources to your device. It should be used with a protection circuit board that guards the battery against overcharge, over-discharge of the pack, and to avoid over-current draw. This product is compatible with 18650 lithium battery Power Mobile Bank .  You can use this battery with development boards like arduino , BBC Micro:Bit  and M5 Stack Development Kits It is very easy to use the cell in any circuit, just solder the wires on the terminals or use 18650 battery holders to easily replace the used cells. Care must be taken while handling Li-ion batteries as they are volatile and inflammable and should not be handled roughly and punctured. Also, don’t overcharge and discharge beyond a certain point as gasses accumulated inside might result in explosions and fire. So always use the Protection board while using Li-Ion cells Note: We do not recommend using this product for critical applications. The capacity and performance of the cell might vary based on charging and discharging parameters. Please note that we do NOT provide any guarantee/warranty on this product. Application: Can be used in Cordless Phones Can be used with Tablet, PC, GPS, iPod, DVD, MP4 Player, IoT etc. Mobiles backup power supply/Power bank Package Includes: 1 x 3.7v 2500mah 18650 Li-Ion Battery Specifications: Voltage 3.7V Battery Capacity  2500 mAh Battery Type Lithium-Ion Charging method CC-CV Rechargeable Yes Battery Dimension(Height x Diameter) 65 x 18mm Connector Dimension(L x W x H) 9 x 7 x 5 mm Weight  100 grams

Witty Fox 3.7V 1000mAh Li-Ion Battery This 3.7v Lithium Ion battery is a very slim, extremely lightweight battery based on the new polymer lithium-ion chemistry. This is the highest energy density battery currently in production. Each cell outputs a nominal 3.7v. These Li ion batteries require special charging. Do not attempt to charge these with anything but a specialized Lithium-Ion battery charger. This Li ion Battery includes built-in protection against over-voltage, over-current, and minimum voltage. Please use caution when using this battery in wearable projects. When using a conductive thread, a short in the thread can create sparks and heat.  Applications: Bluetooth speaker Small Drones GPS Mp4 player DVD Mobile backup power supply Power bank PC and Tablets Package Includes: 1 x Witty Fox 3.7V 1000mAh Li-Ion Battery Specifications: Brand Witty Fox  Battery Type  Lithium Ion Battery Voltage  3.7V Power  1000mAh Battery Dimension(L x W x H)  54 x 34 x 6 mm Connector Dimension(L x W x H) 9 x 7 x 5 mm Weight  24 grams

Witty Fox 3.7V 4000mAh Li-Ion Battery The Witty Fox 3.7V 4000mAh Li-Ion Battery is a rechargeable lithium-ion battery that is extensively utilized in electronic devices like GPS, DVD, Tablet PC, MP4 Player, Power Bank, Mobile Backup Power Supply, Bluetooth Speaker, IOT, and Industrial applications. This li ion battery is equipped with various features such as pack over-voltage protection, pack under-voltage protection, over-voltage protection, cell under-voltage protection, and cell protection. FEATURES: Pack over-voltage Protection Pack under-voltage Protection Over voltage Protection, CELL Under-voltage Protection, CELL Over Load Protection Over current Protection Short circuit protection Reverse Polarity Protection PACKAGE INCLUDES: 1 x Witty Fox 3.7V 4000mAh Li-Ion Battery BATTERY SPECIFICATIONS: Brand Witty Fox  Voltage 3.7V Battery Capacity  4000 mAh Battery Type Lithium-Ion Battery Dimension(L x W x H) 68 x 37 x 20 mm Connector Dimension(L x W x H) 9 x 7 x 5 mm Weight  93 grams

Witty Fox 11.1V 1200mAh Li-Ion Battery The rechargeable lithium-ion battery from Witty Fox, boasting 11.1V and 1200mAh capacity, finds wide application in diverse electronic devices such as GPS, DVD players, tablet PCs, MP4 players, power banks, mobile backup power supplies, Bluetooth speakers, IOT devices, and industrial applications. The Li ion battery comes equipped with multiple features, including pack over-voltage protection, pack under-voltage protection, and individual cell over-voltage protection. FEATURES: Pack over-voltage Protection Pack under-voltage Protection Over voltage Protection, CELL Under-voltage Protection, CELL Over Load Protection Over current Protection Short circuit protection Reverse Polarity Protection PACKAGE INCLUDES: 1 x Witty Fox 11.1V 1200mAh Li-Ion Battery BATTERY SPECIFICATIONS: Brand Witty Fox  Voltage 11.1V Battery Capacity  1200 mAh Battery Type Lithium-Ion Battery Dimension(L x W x H)  68 x 55 x 20 mm Connector Dimension(L x W x H) 9 x 7 x 5 mm Weight  115 grams

Witty Fox 3.7V 8000mAh Li-Ion Battery This 3.7v Lithium-Ion battery is a very slim, extremely lightweight battery based on the new polymer lithium-ion chemistry. This Li ion battery is the highest energy density battery currently in production. Each cell outputs a nominal 3.7v. These Li ion batteries require special charging. Do not attempt to charge these with anything but a specialized Lithium-Ion battery charger. Battery includes built-in protection against over-voltage, over-current, and minimum voltage. Please use caution when using this battery in wearable projects. A short in the thread can create sparks and heat when using conductive thread. Applications: GPS DVD Tablet PC MP4 Player Power Bank Mobile Backup Power Supply Bluetooth Speaker IoT Industrial applications. PACKAGE INCLUDES: 1 x Witty Fox 3.7V 8000mAh Li-Ion Battery SPECIFICATIONS: Brand Witty Fox  Voltage 3.7V Battery Capacity  8000 mAh Storage -20 to +55°C Self–Discharge < 2% per month Charging Regulated DC, CCCV 4.2V Battery Type Lithium-Ion Battery Dimension(L x W x H)  74 x 67 x 20 mm Connector Dimension(L x W x H) 9 x 7 x 5 mm Weight  183 grams

Witty Fox 11.1V 2200mAh Li-Ion Battery This 11.1v Lithium-Ion battery is a very slim, extremely lightweight battery based on the new polymer lithium-ion chemistry. This Li ion battery is the highest energy density battery currently in production. Each cell outputs a nominal 11.1v. These Li ion batteries require special charging. Do not attempt to charge these with anything but a specialized Lithium-Ion battery charger. Battery includes built-in protection against over-voltage, over-current, and minimum voltage. Please use caution when using this battery in wearable projects. A short in the thread can create sparks and heat when using conductive thread. read our blog explaining lithium ion battery vs lithium polymer battery, discusses various aspects of both battery types, including their specifications, advantages, disadvantages, and common applications. Applications: DVD Tablet PC MP4 Player Power Bank Mobile Backup Power Supply Bluetooth Speaker IoT Industrial applications. PACKAGE INCLUDES: 1 x Witty Fox 11.1V 2200mAh Li-Ion Battery SPECIFICATIONS: Brand Witty Fox  Voltage 11.1V Storage -20 to +55°C Self–Discharge < 2% per month Charging Regulated DC Battery Capacity  2200 mAh Battery Type Lithium-Ion Battery Dimension(L x W x H) 70 x 56 x 20 mm Connector Dimension(L x W x H) 9 x 7 x 5 mm Weight  145 grams

Witty Fox 3.7V 400mAh Li-Ion Battery The lithium-ion rechargeable batteries are widely used in GPS, DVD, Tablet PC, MP4 Player, Power Bank, Mobile Backup Power Supply, Bluetooth Speaker, IOT and Industrial applications.

Witty Fox 11.1V 4400mAh Li-Ion Battery This 11.1v Lithium-Ion battery is a very slim, extremely lightweight battery based on the new polymer lithium-ion chemistry. This Li ion battery is the highest energy density battery currently in production. Each cell outputs a nominal 11.1v. These Li ion batteries require special charging. Do not attempt to charge these with anything but a specialized Lithium-Ion battery charger. Battery includes built-in protection against over-voltage, over-current, and minimum voltage. Please use caution when using this battery in wearable projects. A short in the thread can create sparks and heat when using conductive thread. Applications: Used in Tablets and PC Used in MP4 Player Used to make DIY power banks Used to make mobile backup power supply Used to power Bluetooth speaker IoT Devices Industrial applications. PACKAGE INCLUDES: 1 x Witty Fox 11.1V 4400mAh Li-Ion Battery SPECIFICATIONS: Brand Witty Fox  Voltage 11.1V Battery Capacity  4400 mAh Self–Discharge < 2% per month Charging Regulated DC Battery Type Lithium-Ion Battery Dimension(L x W x H) 70 x 55 x 38 mm Connector Dimension(L x W x H) 9 x 7 x 5 mm Weight  277 g

3.7v 2000mah 18650 Li-Ion Battery 18650 battery is a Li-ion rechargeable battery with a 2000 mAh Battery Capacity. This is not a standard AA or AAA battery but is very useful for applications that require continuous high current or high current in short bursts like in cameras, DVD players, iPod, etc. They are safe to use, environment friendly and have long battery life. This li ion battery comes with high energy density and provides excellent continuous power sources to your device. It should be used with a protection circuit board that guards the battery against over-charge, over-discharge of the pack, and avoid over-current drawn. It is very easy to use the cell in any circuit just solder the wires on the terminals or use 18650 battery holders to easily replace the used cells. Care must be taken while handling Li-ion batteries as they are volatile and inflammable and should not be handled roughly and punctured. Also, don’t overcharge and discharge beyond a certain point as gases accumulated inside might result in explosions and fire. So always use the Protection board while using Li-Ion cells Note: We do not recommend using this product for critical applications. The capacity and performance of the cell might vary based on charging and discharging parameters. Please note that we do NOT provide any guarantee/warranty on this product. Read our blog about Battery AH means, where you'll know in detail What is AH in a Battery. It covers all the details of batteries like voltage(V), Ampere (A), Watts (W), and also what are lithium-ion batteries and lithium polymer batteries.