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EEMB

4X EEMB 3.7V Lipo Battery 3700mAh 103395 Rechargeable Lithium Polymer ion Battery Pack with JST Connector (UL Certified for Cell) Make Sure Device Polarity Matches with Battery Before Purchase!!!

    • Based on 341 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Sep 21
Order within 8 hours and 37 minutes
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Size: 4


Features

  • MUST CONFIRM BEFORE PURCHASE: 1.Battery Size; 2.Connector Model; 3.Connector Size; 4.Connector Polarity - THIS IS NOT UNIVERSAL!!! (It will cause a shortage if the polarity of the battery connector does not match your device.) VOLTAGE: 3.7V; Typical capacity: 3700mAh, Min capacity: 3500mAh; Weight: approximate 74g; Size: 33.5 x 96 x 10.3mm/1.32"x3.78"x0.4" (WxLxH)
  • CERTIFICATIONSUN 38.3 compliant and UL certified for cell. More than 400 EEMB batteries are UL certified. Search "MH20555" on UL for all EEMB UL certification information.
  • RELIABLE PERFORMANCENo leaking, excellent cost performance and long cycle life. PCM protection function: over charge, over discharge, over current, short circuit protection. STORAGEKeep the cells in 40%-60% charged state during long period storage. We recommend to charge the battery every 3 months after receipt of the battery and maintain the voltage 3.7-4.0V. And store the battery in cool and dry place.
  • APPLICATIONSuitable for bluetooth speaker, dash cam, keyboard and mouse, Wi-Fi enabled smart home systems, PDA and digital cameras, GPS, monitoring units, notebook computers, e-books, telematics, tracking devices, sleep management equipment, blood oxygen tracking equipment, pulse monitors.

Number of Batteries: 4 Lithium Polymer batteries required. (included)


Brand: EEMB


Battery Cell Composition: Lithium Polymer


Compatible Phone Models: Not applicable for product


Recommended Uses For Product: Camera


Product Dimensions: 1.32 x 3.82 x 0.41 inches


Item Weight: 1.41 ounces


Item model number: LP103395-PCM


Batteries: 4 Lithium Polymer batteries required. (included)


Is Discontinued By Manufacturer: No


Date First Available: December 7, 2019


Manufacturer: EEMB Co.,Ltd


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If you place your order now, the estimated arrival date for this product is: Saturday, Sep 21

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Top Amazon Reviews

    • Seems high quality so far.
Size: 1
I got this for an airsoft pistol and learned that said pistol needed higher voltage to run properly. Said pistol uses a faux extended magazine to house the battery, and this one was a reasonable fit. I'm a bit disappointed it didn't work out, but I have plans for this battery. I own and operate some 3D printers as a hobby and this battery will work great for a few LED lamp projects I have in mind, but I digress. I appreciate the fact that this battery has a built in low voltage cutoff, though I have no intention of testing it. I see a lot of folks use this for microcontroller applications though I can't comment on this battery's efficacy there. For test running LEDs with a buck converter, this battery is working great, it has a much higher capacity compared to the numerous tiny single cell Lithium batteries I have laying around, yet it's compact enough to fit in portable lights. As for the battery connector, I again can't comment. I removed the molex connector that came with this battery and soldered a Deans connector onto it's leads (after testing it on my programmable charger with the molex connector on) and I haven't had any issues. I'm very pleased with this battery, and should I ever need one like this for a future project, I'll gladly order another one. ... show more
Reviewed in the United States on June 21, 2022 by Hawk eye
    • EEMB Lithium Polymer Battery 3.7V 3700mAh
Size: 1
Item received as described.
Reviewed in the United States on July 30, 2024 by Delbert A Carter
    • Working great so far. Changed polarity on mine.
Size: 1
Nice compact battery with connector. I changed the connector polarity by carefully removing the sockets and changing sides. I used a mini screwdriver and microscope to “unlatch” the sockets. If you are familiar with this type of connector this is fairly straightforward. If not you might want to look at the sockets on JST site to see the latch tab that holds them in. Perhaps the batteries could be shipped with the connector loose to have the polarity determined by the user. I use them for the U-Blox C099–F9P gnss rtk unit and they are great and last a long time. (Haven’t run one out yet even with half day of work) ... show more
Reviewed in the United States on October 26, 2021 by Paul
    • Check your Polarity!!
Size: 1
Review Image by Mike K Mike K
Review Image by Mike K Mike K
I paired this with an Adafruit LiPo charging board and the polarity was reversed on the battery compared to the charge board!!! Make sure you check the polarity of the battery input on your charge board or what ever device you are putting the battery in. You can look at the end of the JST connector and compare them like the picture shows. Swapping the polarity on the connector is really easy! Use a pick or razor blade and lift the little pin lock (red arrow points at the plastic locking tab) and then slowly pull the pin out making sure you do not short it across the other pin! Once you have them both out swap which hole it was in and just push it back into the JST connector and you will feel it snap lock into place, you can verify it locked by lightly pulling on the wire to check it. Once you have both pins back in with the correct polarity you are good to go! ... show more
Reviewed in the United States on July 12, 2022 by Mike K Mike K
    • It’s is a battery? Yes .. will it blow your charge up, yes.
Size: 1
Review Image by Charles M. Ihler Charles M. Ihler
I have oh two dozen lipo batteries with JST connectors on them. They are always the same polarity always work fine with the Adafruit, spark fun and clone chargers…. This manufacturer went rogue and have the normal +\- polarity mixed up and I found out when I plugged it in and let the magic smoke out of my adafruit charging boost board … should I have looked? Yeah maybe by now the JST Polaroty position should be pretty well cemented as a standard. I broke the JST off and used another connector and this battery works fine … just expect to make some modifications if you’re using anything standard. One star because if thr cooked $25 BOB. ... show more
Reviewed in the United States on April 18, 2022 by Charles M. Ihler Charles M. Ihler
    • Excellent Capacity to Weight Ratio
Size: 1
Review Image by Chuck Chuck
Bought second as first still going strong under all loads of FPV camera (e.g. 200 mw) on a homemade transportable platform of multiple RC aircraft. Holds voltage and capacity in cold and hot Texas winter and summer temps. I use small battery charger on these and takes awhile to charge fully when drained which almost never happens. If you need longer run time with device that can manage the added weight, this is the best deal I've found. ... show more
Reviewed in the United States on February 7, 2024 by Chuck Chuck
    • Perfect for wireless mechanical keyboard
Size: 1
Very compact to fit inside a keyboard frame, exactly what I needed.
Reviewed in the United States on November 27, 2023 by Ali Moussaoui
    • Works for my arduino LTE shield project.
Size: 1
Got this to supply power to my arduino LTE shield. Not sure how long the battery lasts, but it works. 1 caveat is that I had to reverse the wiring polarity as my project plug had + / - reversed from how the battery came. Simple depin and repin and was up and running. Would be nice to calculate my estimated runtime with my project, but not sure how to figure that out yet. Hopefully it's at least a handful of days. ... show more
Reviewed in the United States on July 8, 2022 by Aeon Psych

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