3.7V 3350mAh 18650 Li-Ion Battery

Note: This is NOT A or AA or AAA type of battery, this is specifically a 18650 Li-ion rechargeable battery with a rated voltage of 3.7V. DO NOT attempt to replace an A-type battery with it.

Note: Battery's warranty period is 1 week from the purchase date.

Note:  This battery cannot be shipped to Sabah, Sarawak, or overseas destinations (excluding Singapore).

This is high quality 18650 battery with a typical capacity of 3350mAh. It is Lithium-Ion based and rechargeable battery (with proper charger) in a cylindrical shape. 18650 battery has become very popular nowadays, many power bank is using it as storage and power source. Even the famous Electrical Vehicle like Tesla is using 18650 batteries particularly to build their battery pack. 

And since the single-cell voltage and capacity are high, rechargeable, it is a very economic solution in electronic or robotic projects. In some cases, this battery has been used for IoT devices powered by solar or other renewable energy. The battery becomes an energy storage device. And of course, it can be series up to get higher voltage, for example connecting 2 units in series (2 x 18650 battery holder) to get ±7.4V (nominal) or 3 units (3 x 18650 battery holder) to get ±11.1V using the 18650 battery holders. Or in some cases, it is being parallel up to increase the capacity and discharge current.

Please do charge it using a proper charger with a balancer. Li-ion battery should be charged and discharged properly to prevent short lifespan and downgrade of its capacity. We recommend using any of these chargers:

• N2 Plus Universal Charger
• Dual 18650 Li-ion Battery Charger
• Multifunction LiPo Balance Battery Charger
• 1A Lipo Charger Module with Protection
• Power Boost 1000 Charger (1A 1000C)

Note: This is 18650 Li-Ion Battery comes with both end (positive and negative) flat metal terminal and there is no protection circuit, so please take extra precaution.

We have tested this battery with a charger that can verify the capacity and it shows more than 3250mAh for every sample:

You might need the proper 18650 sockets/holders to use this battery:

• Single 18650 battery holder
• Two 18650 battery holder (in series)
• Three 18650 battery holder (in series)

• Nominal Voltage: 3.7V (fully charged at 4.2V)
• Minimum discharge voltage: we recommend cut off at 2.5V, lower is possible but it will shorten the lifespan and reduce the capacity.
• Typical Rated Capacity: 3200mAh (min), 3350mAh (max)
  • From our test, we manage to get 3250 to 3275mAh from 5 pieces.
• Recommended Discharge rated: 0.2C, ~2.5A
• Recommended Charging Current: 0.2C, 4.2A
• Weight: ~47gram
• 18650 size: 18mm diameter and 65.5mm length
• No protection circuit
• A flat terminal at both ends
• Life cycle: > 500 times if under proper charge and discharge condition
• Price is for 1 unit of battery only

• 1 x 3.7V 3350mAh 18650 Li-Ion Battery

• INR18650C-3350B01 Datasheet