Am I calculating battery life expectancy correctly for this RF receiver?

Electrical Engineering Asked by WhiskerBiscuit on December 23, 2020

I have this RF remote/receiver. Though the manual says battery life for the receiver is at least 12 months, I easily get 2 years of operation on a fresh set of batteries. The receiver 4 uses AAA batteries, so that should be 6V at 1200 mAh. Assuming there are external factors like self-discharging, the battery life is further decreased by 15%. I’m basing my calculations from this calculator.

Battery Life in years = Battery Capacity in mAh / Current in mAh / 24 / 365 * (1 -.85)

So based upon a 2 year life span (and assuming the .15 constant is correct) is it fair assume that the receiver is drawing on average around 58uA?

I realize I’m making some assumptions here, like the .15 constant. And I’m fairly sure the receiver is operating in sleep mode and waking up, but I want to make sure I understand this before addressing those assumptions.

One Answer

IMHO you are doing it wrong. your calculations are only correct if the RF remote is constantly working and sending signals. And I think the 12 months is estimated by the manufacturer for an average household usage of the product.

Answered by Unicornist on December 23, 2020

Add your own answers!

Related Questions

Constant current source with bypass option

2  Asked on December 15, 2021 by david-cutting


Automation – Stealing a signal from a circuit

1  Asked on December 15, 2021 by craig-monyhan


Clock usage in the always block and in the event

2  Asked on December 15, 2021 by animesh-srivastava


Standards Compliant High DC Load Safety Interlock System

0  Asked on December 15, 2021 by buttercup


Difference between LVDS SerDes and FPD-Link III SerDes?

1  Asked on December 15, 2021 by stephbadger


read negative voltage with mcp3008

1  Asked on December 15, 2021


L-C-L vs Pi network

1  Asked on December 12, 2021


Ask a Question

Get help from others!

© 2022 All rights reserved. Sites we Love: PCI Database, MenuIva, UKBizDB, Menu Kuliner, Sharing RPP