| Bulk Pricing | ||
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| 25+ | ₹122.50 ₹ 103.81 + 18.69 GST | |
| 50+ | ₹121.25 ₹ 102.75 + 18.5 GST | |
| 75+ | ₹120.00 ₹ 101.69 + 18.3 GST | |
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Maximise your project's runtime with this high-capacity 18650 lithium-ion cell. Delivering 2000mAh (7.4Wh) of energy and featuring a flat-top terminal design, it is perfectly suited for custom spot-welded battery packs, power banks, and heavy-duty robotics.
IMAX RC B3 Pro Compact Balance Charger for 2S & 3S LiPo Batteries - EU Plug ₹499.00 
IMAX B6 LiPo Battery Balance Charger - 80W Lithium Polymer ₹2,950.00 
18650 3.65V 3500mAh Lithium-Ion Battery (12.77Wh) - Flat Top High Capacity Cell ₹319.00 
18650 Li Ion 2500 mAh Lithium Battery Cell Rechargable ₹169.00 
IMAX-B6AC Battery Charger for Lithium Ion Polymer Lead Acid NiMH ₹3,499.00 The 2000mAh Power Upgrade If your current 18650 batteries are leaving your projects dead in the water after just an hour, it's time to upgrade. This cell holds a massive 2000mAh of capacity (7.4Wh). Despite holding nearly double the energy of entry-level cells, it retains the exact same industry-standard dimensions: 18mm in diameter and 65mm in length. This means you can instantly upgrade the runtime of your existing flashlights, portable fans, and RC transmitters without needing to change your battery holders.
Flat Top for Custom Pack Building Look closely at the positive terminal of this battery; you will notice it is completely flush with the top of the casing. This is known as a "Flat Top" cell. While button-top batteries are great for standard consumer devices, flat-top cells are the absolute gold standard for makers. The flat surface provides the perfect, smooth canvas for a spot-welder, allowing you to easily weld nickel strips across multiple cells to build massive custom 12V, 24V, or 36V battery packs for e-bikes and heavy robotics.
Optimal Discharge for True Capacity To ensure the longest possible chemical lifecycle (often 500+ charge cycles) and to accurately extract the full 2000mAh capacity, the manufacturer explicitly recommends testing and discharging this cell at a rate of 0.2C. For a 2000mAh cell, 0.2C translates to a continuous, steady current draw of 400mA.
Safety Precautions :
Note: Product photos are for reference. Visual variations in printed branding may occur depending on current manufacturing stock, but the 2000mAh capacity and physical footprint remain guaranteed
Form Factor: 18650 Cylindrical
Chemistry: Lithium-Ion (Li-Ion)
Terminal Type: Flat Top (Unprotected)
Nominal Voltage: 3.7V
Fully Charged Voltage: 4.2V
Rated Capacity: 2000mAh (7.4Wh)
Optimal Discharge Rate: 0.2C (approx. 400mA)
Dimensions: 18mm Diameter x 65mm Length
DIY Power Banks: Spot-welding 4 to 8 of these cells in parallel (along with a 5V boost/charge module) to create a massive custom USB power bank for camping trips.
Heavy-Duty Robotics: Dropping three of these into a 3-slot battery holder to provide a robust 11.1V power source to easily drive L298N motor controllers and heavy DC gear motors.
Laptop Battery Rebuilding: Carefully cracking open dead, proprietary laptop battery packs and replacing the degraded internal 18650 cells with these fresh 2000mAh units.
Unlock New Capabilities (Project Evolution)
The "Indestructible" Bluetooth Boombox: Don't settle for the tiny batteries included in cheap Bluetooth speakers. Evolve your audio build! Use a spot-welder to configure four of these 2000mAh cells into a 2S2P configuration (7.4V, 4000mAh). Wire them through a 2S BMS protection board, and hook them up to a 50W+50W Class-D amplifier board. You have just built a custom, wooden-enclosure boombox that will blast music at maximum volume for an entire weekend on a single charge!
What does the number "18650" mean? It is the standardized physical size code for the battery. "18" means it is 18mm in diameter, and "65" means it is 65mm long. The "0" means it is cylindrical.
Is this a flat top or button top battery? This is a flat top battery. The positive terminal is flush and does not protrude.
Will this fit in a device that requires a button-top battery? Often, no. If a flashlight or device has physical reverse-polarity protection (plastic guards around the positive contact), a flat top battery will not be able to reach the contact point.
Does this battery have a built-in protection board (BMS)? No. This is an "unprotected" raw cell. You must use an external BMS board or plug it into a device with a built-in low-voltage cutoff to prevent over-discharging it.
Can I solder wires directly to the top and bottom of this battery? NO. Applying the high, sustained heat of a soldering iron directly to the steel casing will damage the internal chemistry and can cause the battery to vent or explode. You must use a dedicated battery spot-welder, or use a spring-loaded battery holder.
What is the nominal voltage? The nominal (average operating) voltage is 3.7V.
What is the voltage when it is fully charged? A fully charged 18650 reads exactly 4.2V on a multimeter.
How low can I safely drain this battery? You should never let an unprotected 18650 drop below 2.8V to 3.0V. Draining it below this will cause permanent chemical damage, severely reducing its capacity.
What does "discharge at 0.2C" mean? "C" is the total capacity. 0.2C means 20% of 2000mAh, which is 400mA. Drawing roughly 400mA continuously is the optimal efficiency rate to get exactly 2000mAh of runtime out of the cell per cycle.
Can my project draw more than 400mA? Yes. 18650 cells handle high currents very well. However, running it under a heavy, continuous load (like 2 Amps or 3 Amps) means the voltage will sag faster, and you may extract slightly less total capacity than the 2000mAh rating.
How do I charge this? You must use a dedicated 18650 lithium-ion charger cradle, or an integrated 4.2V lithium charging circuit module (like the TP4056).
Can I wire three of these together to get 11.1V? Yes. Placing three cells end-to-end (in series) gives you a 3S 11.1V pack. However, you must wire them through a 3S BMS protection board to ensure they charge and discharge evenly and safely.
Can I wire two together to get 4000mAh? Yes. Wiring them side-by-side (positive to positive, negative to negative) creates a parallel pack, keeping the voltage at 3.7V but doubling the capacity to 4000mAh.
Can I mix this 2000mAh battery with a 1200mAh battery in a custom pack? Absolutely not. Never mix batteries of different capacities, different brands, or different ages in the same series or parallel circuit. The weaker battery will be over-stressed, destroyed, and could catch fire.
What is the white ring on the top for? The white ring is an insulator. It prevents the positive center terminal from short-circuiting against the outer edge of the top face, which is connected to the negative casing. Do not remove it.
What should I do if the plastic wrapper tears? The entire metal cylinder under the wrapper is the negative terminal. If the wrapper tears, the side of the battery can easily short-circuit against a metal enclosure or another battery. Stop using it immediately and re-wrap it using custom 18650 PVC heat shrink tubing.
Is this battery waterproof? No. Keep it away from water and extreme humidity.
Can I use this in my vape/e-cigarette? Vaping devices draw massive, momentary spikes of current (often 15A to 30A). Generic 2000mAh cells are generally not rated for this extreme burst discharge and can be dangerous if used in mechanical mods. Stick to specialized, high-drain brand-name cells for vaping.
Why does the picture show a purple battery, but mine is pink/blue? Battery manufacturers frequently change their PVC wrapper colors depending on the production batch. The color of the wrapper does not affect performance.
How should I store this battery if I am not using it for months? Do not store it at 100% (4.2V) or 0% (dead). Store it in a cool, dry place at a "storage charge" of roughly 3.7V to 3.8V to significantly prolong its overall lifespan.
| Battery Type | Lithium-Polymer(Li-po) |
|---|---|
| Battery Capacity (mAH) | 1501-2000 |
Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in
We delivery electronics components and parts throughout India using standard couriers like Bluedart, Delhivery & India Post.
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This item is covered by a warranty of 7 days from the date of delivery, against confirmed manufacturing defects only, as verified by Probots' own testing and investigation. In case of a confirmed defect, we will replace the item — a refund is issued only if a replacement can't be supplied (e.g. discontinued or out of stock). Transit damage or a wrong item received must be reported within 3 days of delivery.
If the product shows signs of misuse, tampering, physical damage, static discharge, liquid or fire damage, use of unapproved chemicals, or has been soldered or physically altered in any way.
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Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in
We offer specialized services for Bulk, Wholesale & B2B Customers like discounted prices, additional shipping options, customised products, etc . Customer with large quantity & regular orders qualify for the specialised discounted rates.
We also offer dedicated sales team to assist you with the order process by providing sales quotations, PI, technical support for choosing products, etc.
Note: Business Orders are processed manually and usually take 1-3 days to process compared to placing the order directly on our website. Please plan your purchases accordingly.
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Probots Electronics is highly regarded for its highly skilled team and knowledgeable staff who provide expert guidance to ensure customers select the right components for their technical projects. The business maintains a strong reputation for prompt service and reliable support, with many clients praising their quick response times and genuine commitment to customer satisfaction.
A very great place for electronics Such a well maintained shop... Felt good shopping here
Nice
For new developments kit available and they will support till working, and I suggest this place strongly
This place has all the electronic parts students will ever need, staff is friendly and the place is organised.
It was a really nice experience! I was happy to find such a wide range of robotics kits for kids, suitable for different age groups and learning levels.
Excellent experience
Good stuff
Buyed them. But no bargain. Helpful staff.
Available all children school project spears parts like electronics
It was good experience
Staff is very patient and helpful
One of the best place for electronics you will get everything you want! With the best and orginal quality
Very helpful staff and the best place to buy components for projects
Wonderful store with expert service and technically strong people.
Prompt delivery, excellent technical support
Large inventory of electronic components and parts. Well trained service personnel and technicians who can quickly identify and rectify product defect if any. They are a reliable and trustworthy online stores.
A very great place for electronics Such a well maintained shop... Felt good shopping here
Nice
For new developments kit available and they will support till working, and I suggest this place strongly
This place has all the electronic parts students will ever need, staff is friendly and the place is organised.
It was a really nice experience! I was happy to find such a wide range of robotics kits for kids, suitable for different age groups and learning levels.
Excellent experience
Good stuff
Buyed them. But no bargain. Helpful staff.
Available all children school project spears parts like electronics
It was good experience
Staff is very patient and helpful
One of the best place for electronics you will get everything you want! With the best and orginal quality
Very helpful staff and the best place to buy components for projects
Wonderful store with expert service and technically strong people.
Prompt delivery, excellent technical support
Large inventory of electronic components and parts. Well trained service personnel and technicians who can quickly identify and rectify product defect if any. They are a reliable and trustworthy online stores.
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