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BigM 3.7V 2000mah heavy-duty lithium ion 18650 rechargeable battery is available in flat top and button top. You can make a purchase based on the requirements of your device.
This BigM 3.7V 18650 rechargeable battery comes in a pack of 2's and 5's.
The BigM 3.7V 2000mAh Heavy Duty Lithium-Ion 18650 rechargeable battery is compatible with BigM motion sensor lights, including 100 LED, 114 LED, 136 LED, 166 LED, 190 LED, 212 LED, and 62 COB models, as well as BigM 100W and 90 COB mini street lights. In most cases, replacing the battery restores solar light functionality. Depending on usage, weather, and device, the battery may need replacement every 6 months to 2 years, with some lasting over 3 years. It provides reliable, long-lasting power for continuous lighting.
The BigM 3.7V 2000mAh Heavy Duty Lithium-Ion 18650 rechargeable battery is easy to replace in BigM LED motion sensor lights. Simply unscrew the back of the light and swap out the battery from the slot—just be sure to have a small screwdriver handy. For BigM LED 100, 136, and 166 models, only 1 battery is needed, while other LED lights require 2, and BigM 100W and 90 COB mini street lights need 3 batteries each. Beyond solar lights, this versatile battery is ideal for flashlights, security cameras, toy cars, karaoke microphones, school robotics projects, laptops, light electric vehicles, gaming consoles, rechargeable hand fans, drone controllers, headlamps,drill machines, professional tools battery packs and more. It provides a reliable, long-lasting power solution for a wide range of electronic devices.
Features:
Available as: Button top & flat top
Long battery life: BigM 3.7V battery can recharge up to 1200 cycles.
Low self-discharge: The advantage of the BigM 3.7 lithium-ion 18650 rechargeable battery haslow self-discharge and no typical memory effect. Don’t need to worry about reduction of battery life after constant charging and discharging
Fast charging and 2000mAH high capacity, makes you device work longer.
Safety Performance:
BigM 3.7V 2000mah uses Lithium-ion as the material to make a 18650 rechargeable battery, built-in integrated safety circuit protects battery from over-charging, over-discharging, short-circuit and over-heating, ensures complete safety for the battery.
Product Specifications
Model Number: 2000mAh
Battery Type: Lithium Ion
Battery type: 18650 Battery Lithium-ion
Dimension: 18mm diameter *65mm length
Battery cell: 18650/2000mah capacity
Voltage: 3.70V
Charging time: about 4 hours
Recycle time: up to 1200 times
Standard Charge: Constant current 0.5C (1000mAH)
Constant voltage 4.2V Max.
Charge current: Constant current 1C (2000mAH)
Charge Voltage: 4.2V±0.005V, .
Discharge Current: 3C 6 A
Overall rating: 4.7 / 5 from 24 reviews.
Easy to solder
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Store owner replied: Dear Mr. Jean Claude, Thanks for your feedback and adding an image of the battery pack you made out of the BigM 3.7v 18650 2000mah rechargeable batteries. This means a lot to us. Kind regards Team bigmcanada.com
Received batteries very quickly after my order and used them right away. Perfect for my outdoor solar light.
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Was the nearest place in Atlantic Canada to me that I could find the mAh value close enough for my little portable radio.
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Wonderful quality and delivery is fast!
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Great product
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Not exactly like original
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
The batteries worked perfectly but our solar light had died. The company was great at returns.
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Very good replacement solar charging battery. However it was slightly smaller at the cap (cathode end) than my original. I used a nickel strip to ensure the contact was secure. Price was of value. Thank you
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Store owner replied: Dear Jocelyne, Thank you for your thoughtful review and for sharing your experience with the battery fit. We’re glad to hear it works well for your solar charging needs and that you found the price fair. Your practical solution with the nickel strip is a great idea, and we appreciate you mentioning it—it could be helpful for other customers too. We truly value your support and look forward to serving you again. Kind regards, Kamal BigM Canada
All worked well
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
batteries work and at a great price
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Store owner replied: Dear Mr. Ameen, Thank you for your great feedback! We’re glad to hear the BigM 3.7V 2000mAh Heavy Duty Lithium-Ion batteries are working well for you and that you found them to be a great value. Your satisfaction means a lot to us, and we truly appreciate your support. Looking forward to serving you again! Warm regards, The BigM Canada Team www.bigmcanada.com
The soldering of the batteries would be a little difficult for most so a better install replacement method should be explored. Mine worked fine but...
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Store owner replied: Good evening Mr. Ken, Thanks for your feedback. We understand the difficulties of soldering on a plain nickel surface on lithium ion batteries. That’s why we have introduced a safer options. We have introduced 3.7 V lithium ion battery with two solder tabs. This battery will make our life customer easier to replace batteries for flame lights. The link is given below For this battery in our website: https://bigmcanada.com/products/bigm-18650-battery-with-solder-tabs-3-7v-2500mah-lithium-ion Please reach out to us if you need any more batteries in future. Kind regards Team bigmcanada.com
Exactly the battery we needed!
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Store owner replied: Thank you so much dear Margaret! We’re so glad to hear the 3.7V 2000mAh Heavy Duty Lithium-Ion 18650 battery was exactly what you needed. It’s great to know it met your expectations! We appreciate your support and hope to serve you again soon. — The BigM Canada Team
I thought my rechargeable flashlight needed a new battery. It wouldn’t come on but would when plugged in. I replaced the battery with a new one, let it charge and the flashlight still wouldn’t turn on. so we assumed it was a switch problem and I have bought a new flashlight. I couldn’t use the batteries so I have no review to give you. Can I return them?
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
great stuff. Fits and works well
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
👍
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Very quick in answering questions. Posted same day as order entered. Thanks and would use again ,.
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
I had never used a specific battery and didn't know where to get them. A quick Google search gave me Big M. I called and they knew immediately what I needed and had them in stock. Within 3 days they were at my door. Amazing service by knowledgeable and friendly staff! Thank you very much Steve D Milton
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Arrived well-wrapped and tested correctly on voltage tester.
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Prodduct arrived on time. I am very satisfied.got exactly what i orderd. Thanks
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Store owner replied: Good afternoon Herb, Thank you so much for detailed review and kind words. This means a lot to us. We also have higher capacity 3.7v 3000mah battery that comes as button top and flat top, and also have 1.2V rechargeable AA and AAA NiMh batteries for every day use and wide selections of solar lights. Kind regards Team bigmcanada.com
Excellent service, available at any time for any questions.
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Store owner replied: Good afternoon Ms. Leslie, I hope you had a great holidays! Thank you so much for taking your time to do a review on your purchase. This means a lot to us. I am glad that my assistance was helpful to you. Kind regards Team bigmcanada.com
Very happy with my purchase, very fast delivery!
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
I have replaced batteries for my 12 solar lights with this 2000 mah batteries. All the lights work great. We got fast shipment from bigm brand. Highly recommend this local business
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
The customer service and assistance provided was excellent. It was nice to have someone on the end of the phone to answer my questions. As well they stock a large amount of batteries so the order and shipping were very quick.
BigM 18650 3.7V 2000mAh Solar Lithium Ion Rechargeable Batteries
Quick shipping by Canada post. Very impressed. Battery quality looks good to me so far. Highly recommend
BigM 18650 3.7V 2000mAh Solar Lithium Ion Rechargeable Batteries
Overall rating: 4.7 / 5 from 24 reviews.
Easy to solder
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Store owner replied: Dear Mr. Jean Claude, Thanks for your feedback and adding an image of the battery pack you made out of the BigM 3.7v 18650 2000mah rechargeable batteries. This means a lot to us. Kind regards Team bigmcanada.com
Received batteries very quickly after my order and used them right away. Perfect for my outdoor solar light.
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Was the nearest place in Atlantic Canada to me that I could find the mAh value close enough for my little portable radio.
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Wonderful quality and delivery is fast!
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Great product
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Not exactly like original
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
The batteries worked perfectly but our solar light had died. The company was great at returns.
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Very good replacement solar charging battery. However it was slightly smaller at the cap (cathode end) than my original. I used a nickel strip to ensure the contact was secure. Price was of value. Thank you
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Store owner replied: Dear Jocelyne, Thank you for your thoughtful review and for sharing your experience with the battery fit. We’re glad to hear it works well for your solar charging needs and that you found the price fair. Your practical solution with the nickel strip is a great idea, and we appreciate you mentioning it—it could be helpful for other customers too. We truly value your support and look forward to serving you again. Kind regards, Kamal BigM Canada
All worked well
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
batteries work and at a great price
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Store owner replied: Dear Mr. Ameen, Thank you for your great feedback! We’re glad to hear the BigM 3.7V 2000mAh Heavy Duty Lithium-Ion batteries are working well for you and that you found them to be a great value. Your satisfaction means a lot to us, and we truly appreciate your support. Looking forward to serving you again! Warm regards, The BigM Canada Team www.bigmcanada.com
The soldering of the batteries would be a little difficult for most so a better install replacement method should be explored. Mine worked fine but...
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Store owner replied: Good evening Mr. Ken, Thanks for your feedback. We understand the difficulties of soldering on a plain nickel surface on lithium ion batteries. That’s why we have introduced a safer options. We have introduced 3.7 V lithium ion battery with two solder tabs. This battery will make our life customer easier to replace batteries for flame lights. The link is given below For this battery in our website: https://bigmcanada.com/products/bigm-18650-battery-with-solder-tabs-3-7v-2500mah-lithium-ion Please reach out to us if you need any more batteries in future. Kind regards Team bigmcanada.com
Exactly the battery we needed!
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Store owner replied: Thank you so much dear Margaret! We’re so glad to hear the 3.7V 2000mAh Heavy Duty Lithium-Ion 18650 battery was exactly what you needed. It’s great to know it met your expectations! We appreciate your support and hope to serve you again soon. — The BigM Canada Team
I thought my rechargeable flashlight needed a new battery. It wouldn’t come on but would when plugged in. I replaced the battery with a new one, let it charge and the flashlight still wouldn’t turn on. so we assumed it was a switch problem and I have bought a new flashlight. I couldn’t use the batteries so I have no review to give you. Can I return them?
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
great stuff. Fits and works well
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
👍
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Very quick in answering questions. Posted same day as order entered. Thanks and would use again ,.
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
I had never used a specific battery and didn't know where to get them. A quick Google search gave me Big M. I called and they knew immediately what I needed and had them in stock. Within 3 days they were at my door. Amazing service by knowledgeable and friendly staff! Thank you very much Steve D Milton
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Arrived well-wrapped and tested correctly on voltage tester.
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Prodduct arrived on time. I am very satisfied.got exactly what i orderd. Thanks
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Store owner replied: Good afternoon Herb, Thank you so much for detailed review and kind words. This means a lot to us. We also have higher capacity 3.7v 3000mah battery that comes as button top and flat top, and also have 1.2V rechargeable AA and AAA NiMh batteries for every day use and wide selections of solar lights. Kind regards Team bigmcanada.com
Excellent service, available at any time for any questions.
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
Store owner replied: Good afternoon Ms. Leslie, I hope you had a great holidays! Thank you so much for taking your time to do a review on your purchase. This means a lot to us. I am glad that my assistance was helpful to you. Kind regards Team bigmcanada.com
Very happy with my purchase, very fast delivery!
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
I have replaced batteries for my 12 solar lights with this 2000 mah batteries. All the lights work great. We got fast shipment from bigm brand. Highly recommend this local business
BigM 3.7v 2000mAH Heavy Duty Lithium Ion 18650 Rechargeable Battery
The customer service and assistance provided was excellent. It was nice to have someone on the end of the phone to answer my questions. As well they stock a large amount of batteries so the order and shipping were very quick.
BigM 18650 3.7V 2000mAh Solar Lithium Ion Rechargeable Batteries
Quick shipping by Canada post. Very impressed. Battery quality looks good to me so far. Highly recommend
BigM 18650 3.7V 2000mAh Solar Lithium Ion Rechargeable Batteries
