No, these aren't some sort of weird, AA battery, this is actually a 18650 Lithium Ion Cell. These round high capacity cells have been mainly used in flashlight type applications but with its capability to be used as a drop-in rechargable cell at 3.7V with a capacity of 2600mAh. This is a great battery option for those of you who need a simple to install and replace cell with a lot of juice.
These 18650 Cells have a standard discharge current of 0.2C to a maximum of 1C and can handle about 300 charge cycles.
Note: This item is non-returnable. If this item arrives damaged or is not functioning properly, please do not hesitate to contact us to see if further actions may be taken.
If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.
Skill Level: Competent - You will be required to reference a datasheet or schematic to know how to use a component. Your knowledge of a datasheet will only require basic features like power requirements, pinouts, or communications type. Also, you may need a power supply that?s greater than 12V or more than 1A worth of current.
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Based on 1 ratings:
I found plenty of 18650's suggesting as high as 9900 mah of capacity and at a lower price. It seems you can advertise just about anything you want online and get away with it and so I was pleased to find these. I like the fact that there's a data sheet. As an engineer, I appreciate it when you just give me the facts and let me make a decision based on my review.
I'm using 4 of these in parallel to power a pi-0W set up in a time lapse photography situation. This project is going to have to last for a year or longer. When I designed the power supply I wasn't clear on just how much power the pi was going to draw and the camera is in quite the remote location so I was conservative in my estimate. I may have over-designed the power supply but that's not a ding against these batteries. I now have a total of 8 of these and 4 have been through at least 2 power cycles. Nothing scientific but the batteries seem to be behaving as the data sheet suggest.
I decided to pay more for this battery because of the data sheet and I didn't want to have to just end up spending more money on lower quality batteries later.
I live on the east coast and shipping is surprisingly fast. (2 to 3 days)
I am pleased with my purchase and would recommend these batteries.