BigM is a premium Canadian solar light brand offering a wide range of solar-powered solutions, including motion sensor lights, streetlights, parking lot lights, solar indoor lights, garden and landscaping lights, spotlights, and string lights for outdoor decorations. Known for energy efficiency and durability, BigM products enhance both functionality and aesthetics in any space.
Enjoy Canada wide free shipping for the purchase of $60 or over, and USA wide free shipping for the purchase of $100 orover
The BigM 3.7V 18650 rechargeable battery is designed to work with various BigM solar-powered motion sensor lights, including models with 100, 114, 136, 166, 190, and 212 LEDs, as well as 62 COB and mini street lights like the BigM 100W and 90 COB. In most cases, replacing the battery can restore the functionality of these lights. Battery life typically ranges from 6 months to 3 years, depending on usage and environmental factors. Regular replacement is necessary to maintain optimal performance.
The BigM 3.7V 18650 rechargeable battery is available in packs of 2 or 5, with both button top and flat top options to suit different device needs. Designed for easy replacement in BigM LED motion sensor lights, the battery can be swapped by simply unscrewing the back of the light and replacing it in the designated slot. A small screwdriver may be needed for this process, ensuring convenient maintenance and extended life for your solar-powered lights.
For BigM LED 100, LED 136, and LED 166 motion sensor lights, you need to replace only 1 battery, and for other LED lights, you need 2 batteries for each light. For BigM 100W and 90 COB mini street lights, 3 batteries are required.
The 3.7V 18650 rechargeable battery is versatile and can be used in a wide range of devices, including flashlights, security cameras, alarm clocks, toy cars, RC cars, karaoke microphones, laptops, light electric vehicles, rechargeable hand fans, and more. Its compatibility with various electronics makes it a reliable power source for everyday use. Available in packs of 2 or 5, this battery ensures convenient and long-lasting performance.
🔋 Need a 2-Pack Battery?
BigM currently has limited inventory of 2-pack 3.7V 1200mAh rechargeable batteries, available in both Button Top and Flat Top options.
If you require a 2-pack size, please contact us before placing your order:
📧 Email: bigmcanada@vmail.com
📞 Phone / WhatsApp: 416-452-5740
We’ll be happy to make the 2-pack inventory available for you.
Please contact us in advance to ensure availability.
Features:
Long battery life: BigM 3.7v 18650 rechargeable battery 1200mah battery can recharge up to 1200 cycles.
Low self-discharge: The advantage of the BigM 3.7v 18650 rechargeable battery is low 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 1200mAH high capacity, make your device work longer.
Safety Performance:
BigM 3.7v 18650 rechargeable battery uses Lithium-ion as the material to make a rechargeable lithium battery. The built-in integrated safety circuit protects the battery from over-charging, over-discharging, short-circuit, and overheating, ensuring complete safety for the battery.
The color of the batteries can be blue, green, pink, or purple based on the availability of the stocks.
Product Specifications
Model Number: 1200mAh
Battery Type: Lithium Ion
Battery type: 18650 Rechargeable Li-ion
Dimension: 18mm*65mm
Battery cell: 18650/1200mah
Voltage: 3.70V
Discharge current: 1C 1.2 A
Charging time: about 5 hours
Recycle time: up to 1000 times charge cycles
Customer Reviews
Overall rating: 4.7 / 5 from 61 reviews.
I had trouble initially but AKM KAMAL was a tremendous help.
Please assure me he will get to see my solar lantern all glowing so beautifully as he asked me to let him know and I didn’t know how to contact him. Thank you.
Store owner replied:
Dear Susan,
Thank you so much for your kind words and for taking the time to share your experience! We’re thrilled to hear that Kamal was able to help you—it means a lot to us when our team members make a real difference.
Rest assured, we’ll make sure your message reaches him, and we’re certain he’ll be delighted to know your solar lantern is glowing beautifully just as he hoped. Your satisfaction is what powers our commitment, and stories like yours inspire us every day.
If you ever need anything else or have more glowing moments to share, we’re just a message away.
Warm regards,
The BigM Canada Team
It was exactly what I was looking for,good information on listing
I was very excited to install the batteries and reactivate my outdoor solar table lamp after two years but unfortunately as soon as I inserted the battery it started smoking. A wire burned off the chip board.
So sad!!!
I don’t believe this had anything to do with the battery. Thes battery also had arrived super fast. I wish I had a better outcome but no fault to the company
Store owner replied:
Hi Heather,
Thank you so much for taking the time to share your experience and for your understanding and kind words about our shipping service. We’re truly sorry to hear about what happened with your outdoor solar table lamp — we can imagine how disappointing that must have been after looking forward to using it again.
From what you described, it’s possible the battery may have been inserted in the opposite direction by accident, which can sometimes cause the circuit board to short and create smoke or wire damage in certain solar lights. Thankfully, issues like this are usually related to the lamp circuitry rather than the battery itself.
We sincerely appreciate your thoughtful and fair review, and we’re glad the batteries arrived quickly. If you ever need assistance choosing a replacement battery or troubleshooting another solar product, please don’t hesitate to reach out — we’re always happy to help.
Thank you again for supporting BigM!
The website was easy to navigate to find what I needed. The order process was simple and smooth and shipping was prompt and efficient. I will definitely not hesitate to order from here again in the future if the need arises.
I accidentally ordered the wrong batteries - but there is no way offered to exchange them unless I pay delivery to send them back (which is almost the price of the batteries). Otherwise service was good!
Store owner replied:
Thank you, Wendy, for your wonderful feedback!
We’re glad to hear that you were able to easily find the batteries you needed and that your ordering experience was smooth. It’s great to know that the delivery met your expectations as well.
At BigM, we always aim to make the process simple and reliable for our customers, and your review truly means a lot to us. We appreciate your support and look forward to serving you again in the future!
Got them, but shipping seemed to take longer than it should have.
Store owner replied:
Hi Alex,
Thank you for your feedback—we really appreciate you taking the time to share your experience.
We’re glad to hear you received your order, but we’re sorry that the shipping took longer than expected. Typically, deliveries from Toronto to Abbotsford, BC take about 6–7 business days via UPS or Canada Post Expedited Parcel. Occasionally, delays can happen due to factors outside our control, such as carrier backlogs or transit issues.
That said, we completely understand how important timely delivery is, and we’ll continue working with our shipping partners to ensure a smoother experience.
If you have any concerns with your order or need assistance in the future, please don’t hesitate to reach out—we’re always here to help.
Thank you for choosing BigM!
Warm regards,
BigM Customer Support
This is the only place to buy batteries. I just installed this one and ordered the rest because if my prior battery was done then the rest are not long after. I have always been happy with Big M and I am buying from a Canadian distributor
Store owner replied:
Thank you so much, Mr. Piluk, for your continued trust and kind words! We truly appreciate your loyalty to BigM and are glad to know you’re happy with our 18650 rechargeable batteries. It’s always a pleasure serving our Canadian customers with reliable products and local support. Thanks again for choosing BigM — we look forward to serving you for many more projects ahead!
The batteries are too big. I was thinking they were AA size. The service I received from Kamal was fantastic!
Store owner replied:
Good evening Tracy,
Thank you so much for your compliment. We understand that you got the wrong size batteries. Please return those batteries, we will issue a refund as soon as we receive those.
Also please send us pictures of the battery you have with the length and diameter. We will custom order for you before spring.
Please put away your solar lights somewhere safe.
Warm regards
Was waiting a long time for the item. Contacted seller and they were very responsive. Assumed that the item must have got lost in transit and immediately sent a new item out. Received it in a few days. Very good customer service. Item is batteries and they work as expected.
Store owner replied:
Dear Helen,
Thank you for sharing your experience with us. We truly appreciate your patience while your order was in transit, and we’re glad we could quickly resolve the situation for you. It’s great to hear the replacement arrived promptly and that the batteries are working as expected. Your kind words about our customer service mean a lot to our team.
Thank you for choosing BigM Canada — we look forward to serving you again in the future!
Kind regards,
Kamal
BigM Canada
Store owner replied:
Thank you so much for your feedback, Patti! We’re glad to hear the batteries arrived quickly and were just what you needed. Your satisfaction means a lot to us, and we appreciate you choosing BigM. If you ever need more or have any questions, we’re here to help!
Kind regards
Team bigmcanada.com
Good batteries and cheaper than buying from the big river online
Store owner replied:
Thank you, Desiree! We’re glad to hear you’re happy with the quality and pricing of our batteries. We strive to offer reliable products at great value, and your feedback means a lot to us. If you ever need more or have any questions, feel free to reach out. We appreciate your support!
Thank you so much for all your help with my order but I won’t know how they work for me until I flyout and try them to where they will be used but guessing they will be great. I have forwarded your company’s name and passed along the fantastic customer service experience I received to many of my friends. Thank you again
Store owner replied:
Thank you, Miss Donna, for your kind words and for sharing your experience! We truly appreciate your support and are glad we could assist with your order. We hope the batteries work perfectly for your needs once you try them out. Your recommendation means a lot to us, and we’re grateful for you spreading the word about our service. Safe travels, and thank you again!
Store owner replied:
Good evening Mr Daniel,
Thank you so much for doing a review on BigM 3.7v 1200mah rechargeable lithium ion battery and using all the kind words. This means a lot to us.
Kind regards
I looked everywhere for this type of battery.. I’m so happy .. not only that I was worried it was the first time buying this type of battery, they also came in with the best price and the delivery was fast.. . thank you and I definitely will be buying more product from this company.
Store owner replied:
Good evening Ms Selina,
Thank you so much for your detailed review and kind words. This means a lot to us. Much appreciated.
Kind regards
Team bigmcanada.com
I am very happy with the product. Was not sure if they were the right batteries, very happy they were. Looking forward to seeing different products from your company
I had trouble initially but AKM KAMAL was a tremendous help.
Please assure me he will get to see my solar lantern all glowing so beautifully as he asked me to let him know and I didn’t know how to contact him. Thank you.
Store owner replied:
Dear Susan,
Thank you so much for your kind words and for taking the time to share your experience! We’re thrilled to hear that Kamal was able to help you—it means a lot to us when our team members make a real difference.
Rest assured, we’ll make sure your message reaches him, and we’re certain he’ll be delighted to know your solar lantern is glowing beautifully just as he hoped. Your satisfaction is what powers our commitment, and stories like yours inspire us every day.
If you ever need anything else or have more glowing moments to share, we’re just a message away.
Warm regards,
The BigM Canada Team
It was exactly what I was looking for,good information on listing
I was very excited to install the batteries and reactivate my outdoor solar table lamp after two years but unfortunately as soon as I inserted the battery it started smoking. A wire burned off the chip board.
So sad!!!
I don’t believe this had anything to do with the battery. Thes battery also had arrived super fast. I wish I had a better outcome but no fault to the company
Store owner replied:
Hi Heather,
Thank you so much for taking the time to share your experience and for your understanding and kind words about our shipping service. We’re truly sorry to hear about what happened with your outdoor solar table lamp — we can imagine how disappointing that must have been after looking forward to using it again.
From what you described, it’s possible the battery may have been inserted in the opposite direction by accident, which can sometimes cause the circuit board to short and create smoke or wire damage in certain solar lights. Thankfully, issues like this are usually related to the lamp circuitry rather than the battery itself.
We sincerely appreciate your thoughtful and fair review, and we’re glad the batteries arrived quickly. If you ever need assistance choosing a replacement battery or troubleshooting another solar product, please don’t hesitate to reach out — we’re always happy to help.
Thank you again for supporting BigM!
The website was easy to navigate to find what I needed. The order process was simple and smooth and shipping was prompt and efficient. I will definitely not hesitate to order from here again in the future if the need arises.
I accidentally ordered the wrong batteries - but there is no way offered to exchange them unless I pay delivery to send them back (which is almost the price of the batteries). Otherwise service was good!
Store owner replied:
Thank you, Wendy, for your wonderful feedback!
We’re glad to hear that you were able to easily find the batteries you needed and that your ordering experience was smooth. It’s great to know that the delivery met your expectations as well.
At BigM, we always aim to make the process simple and reliable for our customers, and your review truly means a lot to us. We appreciate your support and look forward to serving you again in the future!
Got them, but shipping seemed to take longer than it should have.
Store owner replied:
Hi Alex,
Thank you for your feedback—we really appreciate you taking the time to share your experience.
We’re glad to hear you received your order, but we’re sorry that the shipping took longer than expected. Typically, deliveries from Toronto to Abbotsford, BC take about 6–7 business days via UPS or Canada Post Expedited Parcel. Occasionally, delays can happen due to factors outside our control, such as carrier backlogs or transit issues.
That said, we completely understand how important timely delivery is, and we’ll continue working with our shipping partners to ensure a smoother experience.
If you have any concerns with your order or need assistance in the future, please don’t hesitate to reach out—we’re always here to help.
Thank you for choosing BigM!
Warm regards,
BigM Customer Support
This is the only place to buy batteries. I just installed this one and ordered the rest because if my prior battery was done then the rest are not long after. I have always been happy with Big M and I am buying from a Canadian distributor
Store owner replied:
Thank you so much, Mr. Piluk, for your continued trust and kind words! We truly appreciate your loyalty to BigM and are glad to know you’re happy with our 18650 rechargeable batteries. It’s always a pleasure serving our Canadian customers with reliable products and local support. Thanks again for choosing BigM — we look forward to serving you for many more projects ahead!
The batteries are too big. I was thinking they were AA size. The service I received from Kamal was fantastic!
Store owner replied:
Good evening Tracy,
Thank you so much for your compliment. We understand that you got the wrong size batteries. Please return those batteries, we will issue a refund as soon as we receive those.
Also please send us pictures of the battery you have with the length and diameter. We will custom order for you before spring.
Please put away your solar lights somewhere safe.
Warm regards
Was waiting a long time for the item. Contacted seller and they were very responsive. Assumed that the item must have got lost in transit and immediately sent a new item out. Received it in a few days. Very good customer service. Item is batteries and they work as expected.
Store owner replied:
Dear Helen,
Thank you for sharing your experience with us. We truly appreciate your patience while your order was in transit, and we’re glad we could quickly resolve the situation for you. It’s great to hear the replacement arrived promptly and that the batteries are working as expected. Your kind words about our customer service mean a lot to our team.
Thank you for choosing BigM Canada — we look forward to serving you again in the future!
Kind regards,
Kamal
BigM Canada
Store owner replied:
Thank you so much for your feedback, Patti! We’re glad to hear the batteries arrived quickly and were just what you needed. Your satisfaction means a lot to us, and we appreciate you choosing BigM. If you ever need more or have any questions, we’re here to help!
Kind regards
Team bigmcanada.com
Good batteries and cheaper than buying from the big river online
Store owner replied:
Thank you, Desiree! We’re glad to hear you’re happy with the quality and pricing of our batteries. We strive to offer reliable products at great value, and your feedback means a lot to us. If you ever need more or have any questions, feel free to reach out. We appreciate your support!
Thank you so much for all your help with my order but I won’t know how they work for me until I flyout and try them to where they will be used but guessing they will be great. I have forwarded your company’s name and passed along the fantastic customer service experience I received to many of my friends. Thank you again
Store owner replied:
Thank you, Miss Donna, for your kind words and for sharing your experience! We truly appreciate your support and are glad we could assist with your order. We hope the batteries work perfectly for your needs once you try them out. Your recommendation means a lot to us, and we’re grateful for you spreading the word about our service. Safe travels, and thank you again!
Store owner replied:
Good evening Mr Daniel,
Thank you so much for doing a review on BigM 3.7v 1200mah rechargeable lithium ion battery and using all the kind words. This means a lot to us.
Kind regards
I looked everywhere for this type of battery.. I’m so happy .. not only that I was worried it was the first time buying this type of battery, they also came in with the best price and the delivery was fast.. . thank you and I definitely will be buying more product from this company.
Store owner replied:
Good evening Ms Selina,
Thank you so much for your detailed review and kind words. This means a lot to us. Much appreciated.
Kind regards
Team bigmcanada.com
I am very happy with the product. Was not sure if they were the right batteries, very happy they were. Looking forward to seeing different products from your company
