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Description
LITHIUM ION BATTERY PACK - 3.7V 4400MAHNeed a big battery for your project? This lithium ion pack is made of 2 balanced 2200mAh cells for a total of 4400mA capacity! The cells are connected in parallel and spot welded to a protection circuit that provides over voltage, under voltage and over current protection. Each cell can provide 1A of current for about 4 hours so all together the peak current you can draw is a little over 1. 5 Amps. Note that these batteries are not designed to sustain
Need a big battery for your project? This lithium ion pack is made of 2 balanced 2200mAh cells for a total of 4400mA capacity! The cells are connected in parallel and spot-welded to a protection circuit that provides over-voltage, under-voltage and over-current protection.
Each cell can provide 1A of current for about 4 hours so all together the peak current you can draw is a little over 1.5 Amps. Note that these batteries are not designed to sustain such high loads, we suggest keeping any constant current draw under 1A.
The packs come with color coded wires, and now they come with a JST 2-pin cable attached for use with our chargers! Because they have a genuine JST connector, not a knock-off, the cable wont snag or get stuck in a matching JST jack, they click in and out smoothly. The cables are rated for 2A so if you use them keep that in mind.
The included protection circuitry keeps the battery voltage from going too high (over-charging) or low (over-use) which means that the battery will cut-out when completely dead at 2.5V. However, even with this protection it is very important that you only use a LiIon/LiPoly constant-voltage/constant-current charger to recharge them and at a rate of 2A or less.
Like most lithium-ion packs, the batteries we sell do not have thermistors built in. This is why we suggest charging at 1/2C or even less - 2A max in this case. Of course, you can charge at a lower rate - it'll just take a little longer to fill up.
Additional safety notes: Do not use a NiMH/NiCad/lead-acid charger! Use a proper LiIon/LiPoly charger for 3.7/4.2V cells. Do not charge unattended. Also, do not abuse these batteries, do not short, bend, crush or puncture. As with all Lithium ion batteries and with any power source - they should be used by experts who are comfortable working with power supplies.
For UK customers only. We do not ship this item outside the UK.
Features
- 2 x 2200mAh Lithium Ion 18650-sized cells in parallel
- Dimensions: 69mm x 37mm x 18mm / 2.7" x 1.5" x 0.71"
- Weight: 95 g/ 3.5 oz
- Max charging rate: 2A
- Max continuous discharge rate: 4.4A
- Datasheet for the individual cells in the pack
- Datasheet for the pack
- Test report for the pack
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Professional, attractive looking coffee bags.
Whether for gifting or selling or just using at home, these coffee bags are durable and high quality, and they look very professional! I have used a couple of them with no issue with my Mylar bag heat sealer and have been very pleased with the results. I think the price (currently $36.99 for 60) is a good deal considering the quality and quantity you get with this order, and I feel confident recommending these bags to others based upon my own personal experience with them.
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Reviewed in the United States on May 27, 2024
★★★★★ 5
Good quality bags
I'm far from a professional coffee roaster, but I do enjoy it. I used to use just little plastic bags when giving coffee to friends and family, but these work so much better! They are quite thick and just feel like they're quality.
I do not have a mylar sealer, but I did figure out that a vacuum heat sealer will work. Just gotta run the heat part a couple times. Probably not as good as a real mylar sealer, but it works. Again, I'm not professional.
I like that, being black bags, they include a roll of labels. Hard to write on black, so this was a nice addition. Overall, these are great bags.
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Reviewed in the United States on April 29, 2024
★★★★★ 4
The valve allows for the release of carbon dioxide gas while preventing oxygen from entering the bag
Note that you will need a heat sealer to seal these bags.
The high-barrier aluminum foil construction of these bags provides excellent protection against moisture, oxygen, and light, which are the primary factors that can degrade the quality and freshness of coffee beans. The side zipper design and heat sealable feature ensure a tight seal, effectively preventing any air from entering or escaping the bag. The inclusion of a valve allows for the release of carbon dioxide gas while preventing oxygen from entering the bag, further preserving the flavor and aroma of the coffee beans. These bags are really great for storing coffee.
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Reviewed in the United States on May 8, 2024
★★★★★ 5
Nice design, easy to pour, smooth coffee.
This is a really great design. We've been using this since July of 2024 and it's come in really handy for daily coffee making. Much smoother than a drip machine, and less coffee is needed. This starts the journey coffee making artisans.
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Reviewed in the United States on December 11, 2024
★★★★★ 5
Just the perfect size!
Love the size of the carafe. Smaller than expected but that was what I was hoping for. A good 2½ to 3 cups full. Looks modern and Chic and blends in with all the other stainless steel appliances in my kitchen.
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Reviewed in the United States on September 20, 2024