Recent Purchase
lmd***
Nominal Voltage:3.73V;Nominal Capacity:19.5mAh;Battery Type:Coin;
$180.32
2 days ago
xxw***
Nominal Voltage:3.73V;Nominal Capacity:19.5mAh;Battery Type:Coin;
$244.72
22 days ago
xkb***
Nominal Voltage:3.73V;Nominal Capacity:19.5mAh;Battery Type:Coin;
$167.44
39 days ago
jyh***
Nominal Voltage:3.73V;Nominal Capacity:19.5mAh;Battery Type:Coin;
$51.52
31 days ago
bve***
Nominal Voltage:3.73V;Nominal Capacity:19.5mAh;Battery Type:Coin;
$206.08
17 days ago
nzj***
Nominal Voltage:3.73V;Nominal Capacity:19.5mAh;Battery Type:Coin;
$231.84
31 days ago
ayy***
Nominal Voltage:3.73V;Nominal Capacity:19.5mAh;Battery Type:Coin;
$77.28
15 days ago
biu***
Nominal Voltage:3.73V;Nominal Capacity:19.5mAh;Battery Type:Coin;
$167.44
36 days ago
ynq***
Nominal Voltage:3.73V;Nominal Capacity:19.5mAh;Battery Type:Coin;
$128.80
32 days ago
xla***
Nominal Voltage:3.73V;Nominal Capacity:19.5mAh;Battery Type:Coin;
$77.28
37 days ago
View All
Customer Reviews
M7840S3/LIR7840 3.73V 17.5~19.5mAh hearing aid/medical device battery
$8$12.88-37.89%
Nominal Voltage:
3.73V
Nominal Capacity:
19.5mAh
Battery Type:
Coin
Quantity:
Add to Cart
Wishlist
Features
High-Performance M7840S3/LIR7840 3.7V Medical Battery – Precision Power for Critical Devices
Engineered for reliability, the M7840S3/LIR7840 delivers a stable 3.7V output with a robust 17.5~19.5mAh capacity, ensuring extended runtime for hearing aids and sensitive medical equipment. Featuring ultra-safe lithium-ion chemistry and a compact, leak-proof design, this battery is built to meet stringent medical-grade standards. The gold-plated contacts minimize resistance for consistent energy flow. Ideal for high-drain devices like digital hearing aids, glucose monitors, and portable diagnostic tools. Bulk pricing available – wholesale discounts for clinics, distributors, and OEMs. Global stock. Factory-direct pricing. Custom bulk packaging options.
See More
Description
Shipping & Delivery
