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⚡ Power your smart life with batteries that never quit!
The EEMB 20-Pack ER14250 1/2AA 3.6V lithium batteries offer 1200mAh capacity with a wide operating temperature range (-55°C to +85°C). Designed for low-power devices like home automation sensors and alarms, these non-rechargeable batteries boast a 10-year shelf life and meet rigorous safety certifications including RoHS, UN 38.3, and UL standards.











| ASIN | B0DCDGK1MZ |
| Antenna Location | Indoor/Outdoor |
| Battery Capacity | 1200 Milliampere Hour (mAh) |
| Battery Cell Composition | Lithium-Thionyl Chloride (Li-SOCL2) |
| Battery Cell Type | Lithium-Thionyl Chloride (Li-SOCL2) |
| Battery Weight | 22 Grams |
| Best Sellers Rank | #39,796 in Health & Household ( See Top 100 in Health & Household ) #110 in AA Batteries |
| Brand | EEMB |
| Customer Reviews | 4.0 out of 5 stars 2,257 Reviews |
| Item Weight | 0.78 Ounces |
| Manufacturer | EEMB Co.,Ltd |
| Model Name | ER14250 |
| Model Number | ER14250 |
| Number of Batteries | 20 Lithium Metal batteries required. (included) |
| Recommended Uses For Product | Indoor/Outdoor |
| Reusability | Single Use |
| Unit Count | 20.0 Count |
| Voltage | 3.6 Volts |
R**C
Check the voltages
Had to update my review. Seller fixed this issue and made it right. Thank you. Waste of time. Two of the batteries only registered 1.5 volts.
L**E
Great value and quality rare battery
Finally found a brand that the batteries were not already dead by the time of delivery.. 100% full .. Thank you
A**R
DO NOT BUY
I would give these replacement batteries zero stars if I could. Bought them six months ago to have a spare set. Went to use two of them today, and they are dead. Tried the other two, they are also dead. Garbage. Too late to return now so they’re going in the recycle bin. Waste of money.
G**.
Works in our oxygen monitor
These batteries were purchased to replace the dead battery and her old oxygen monitor. They are the correct size for our monitor and they look like they’re going tobe pretty good batteries. The battery four pack will probably last us a long time because this is the first time we’ve had to replace the batteries in years. Before purchasing these batteries, make sure your device uses this battery.
R**.
Batteries almost dead but the Seller replaced
Ordered these as spares for my water leak sensors. They were all almost dead. The seller quickly replaced the defective batteries with new stock and stated that they test all batteries but warehouse conditions can cause them to degrade. Seller made good on the transaction.
W**E
Gets the job done!
Gets the job done!
R**.
Last a long time and a great price
I use these batteries for my garage door tender. Let’s me know when my garage door is open. The batteries last a long time. Last time I changed these batteries was 2 years ago.
K**H
Power
Works good
F**R
Fonctionne
Fonctionne parfaitement avec mes équipements domotiques Aeotec Door Window Sensor 7
I**Y
Quick and correct
To quick to tell, but nice quick delivery thx
P**O
Funzionale
prese per i sensori dell'antifurto di casa. Fanno il loro dovere,. in quanto alla durata; è ancora tutto da testare, solo il tempo me lo dirà Aggiorno tra un anno.... spero anche di più hahaha
C**O
FIABLES, ESTABLES Y CON GRAN VIDA UTIL
Como usuario habitual de sensores inalámbricos, puedo decir que estas baterías ER14250 de 3.6V (tecnología de litio cloruro de tionilo) ofrecen un rendimiento excelente. Son ideales para dispositivos de bajo consumo y larga duración como sensores de puertas, alarmas, contadores, medidores o sistemas IoT. Destaco tres cosas: 1. Tensión constante: mantienen voltaje estable hasta casi el final de su vida útil. No hay caídas de rendimiento bruscas. 2. Larga duración real: en condiciones normales pueden durar de 1 a 5 años, dependiendo del consumo del dispositivo. 3. Calidad del encapsulado: buen sellado, sin fugas, y soportan rangos amplios de temperatura, lo cual es clave en exteriores o ambientes exigentes. En mi caso, tras varias semanas de uso en un sensor de puerta, la lectura de voltaje sigue casi intacta y sin fallos de comunicación. Recomiendo especialmente si buscas fiabilidad en dispositivos que no puedes estar revisando cada dos por tres.
D**I
Perfect
Great
Trustpilot
5 days ago
2 weeks ago