

🔋 Power your wireless lifestyle with precision and confidence!
The EEMB 3.7V 820mAh Lithium Polymer Battery Pack features a compact form factor with a reliable JST connector, designed specifically for wireless devices like Bluetooth speakers and smart home gadgets. It offers robust safety protections, UL and UN certifications, and a long cycle life, ensuring dependable, portable power wherever you go.












| ASIN | B082152887 |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | #140,505 in Health & Household ( See Top 100 in Health & Household ) #165 in 3.7V Batteries |
| Customer Reviews | 4.2 4.2 out of 5 stars (947) |
| Date First Available | November 25, 2019 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.563 ounces |
| Item model number | LP653042-PCM |
| Manufacturer | EEMB Co.,Ltd |
| Product Dimensions | 1.2 x 1.73 x 0.27 inches |
A**R
Battery Convenience
This battery does well! I did have a project of intalling battery to a bluetooth divice which didn't have a internl battery, so I inproviced this battery in conjuction with a module to recharge it and it worked perfectly, now my device doesn't need to be connected to electrcity all the time I just change the battery and I'm done for atleast 6 hours of operación wirelessly. Pretty good!
H**Y
Great so far. Capacity is as advertised
So far I'm very pleased with this battery. The four stars is only because I've only charged and discharged it twice so far. I ran a capacity test at the rated current and voltage and measured almost exactly the claimed mAHr. Excellent!
S**N
Size matters
Same as original. I had to have a replacement exactly the same size to fit inside my dash cam. Had to solder the leads as the original.
J**.
Great Battery but was wrong size
The terminal on my bone stimulator was too small for this battery. I was hoping it to be compatible but was not. The manufacturer of the health product didn’t want to send me a replacement battery bec it was from 2018. Though they wouldn’t send you one if it was a 2022 in 2023. They want to make their money n those things cost $1200 and up.
C**A
Great price & size for Dashcam replacement battery
I purchased this battery to replace my battery built in to my dashcam. This was a gem to find, since it almost matches the specs of the battery required for my dashcam. The plus for me it matches the voltage & a larger mah battery to run longer without wired power. Just had to clip the connector and solder it to the board of the dashcam now it's as good as new! Great also for using it on drone builds or other DYI projects.
I**R
Not as described
The batteries I purchased are listed as 820mah but they are actually 82mah, woefully insufficient for my needs. Needs to have an accurate description.
H**I
Jury is still deliberating...
It's pool season, and my bride loves tunes while splashing & sunning. She's used a little "JBL Clip" to amp up her phone tunes - but it started operating on shorter and shorter time frames (around 1/2 hrs). When new, it would run for 4 hrs plus. With this in mind, I figure that original battery was past it's "best by" date. Ordered this battery (rec'd quickly) as replacement, and dug in. Took out original 550 ml amp unit, and spliced in this new one. Before buttoning things back up, I put and charger- and sure enough the little puppy volted up to 4.19 vdc b4 completing charge (charging @ 5 vdc thru it's micro USB input). Handed reassembled back to my bride to resume her sun & fun. She's used it many times since over the last month - BUT ONLY GETS AROUND 3 HRS runtime (naturally, keeping out of direct sun). While for the most part, the original problem is resolved - BUT, I would think with the replacement being of higher ml amp's - I would think the runtime would be even longer than factory new. With this in mind, I question the actual storage capacity of this replacement. Without having some kinda tiny shunt available for further testing - the jury is still out. If the supplier wants contact me to discuss further - I'd welcome their input. Don't know if I got a mediocre specimen or what - but don't think battery has capacity of stated specs...
S**Y
Works fine
Works to power my project but wasn’t sufficient for booting. Otherwise good product for smaller projects with lower current draw.
P**S
Baught to replace dead battery in a laser telemeter Bosch GLM80. Doesn't work. The GLM80 works fine when powered by lab power supply.
G**O
Son buenas, para mí son un poco grandes y he tenido que modificar la conexión
A**3
They are off by a couple mm's so be careful ordering these. but for the rest they work
G**E
Questa batteria LiPo si è rivelata di ottima qualità. Offre una capacità di carica che corrisponde a quanto dichiarato e garantisce un’erogazione di energia perfetta per i miei dispositivi. La batteria è leggera e compatta, quindi ottima per vari progetti elettronici senza aggiungere peso o ingombro. Ideale per chi cerca una batteria efficiente e duratura.
R**H
Mitt gamla var på 1000mAh men det här på 820mAh gjorde ändå ett bra jobb i min ficklampa.
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