Comments by tchopko f.

  • Understanding battery capacity: Ah is not A

    Understanding battery capacity: Ah is not A

    - 18 April 2014

    Ok, i was reading thourhg the post, but didn't get really andswer of what my question was, so i allow myself to add some new!!!

    well, here it goes.
    I am user of an audio device, the H4n recorder, using phantom power mic on. The h4n is using 2 AA batteries but by giving 48v to the mic, the power runs down very fast. And i need to be able to record sound for longer period than one hour!!!

    so i am trying to find a solution.
    the H4n as a input of 5v 1A...
    i am thinking of building a little set that would give this power to the machine.

    but i can't understand what to expect.

    let's say i am plugging together 4 rechargeable AA, i should get 4,8 v. But when i check the battery they give more 1,25V than 1,2V, so than would come pretty close to 5V.
    Now... the batteries are 2500mAh.. more or less...
    But i can't understand the link.
    If i put 4 AA, i am supposed to get way more than 1A... or? Is there a risk of burning the audio device?
    Or this 1A just means that is what it request from the battery to operate, and they will gently give it enough....

    Some electrician in a store told me i would have hard time to run the device, as i would hardly get the 1A requested...

    so?
    Shall i make to sets of 4 AA in parallele, getting still 5V but more power....

    or this is way too much for the audio recorder...

    if you can help in these dark thoughts!!!
    have a good day!!!

New Products

MP6603 Stepper Motor Driver Carrier
Pololu Basic SPDT Relay Carrier with 5VDC Relay, Terminal Blocks, and JST SH-Style Top-Entry Connector
QTR-MD-01RC-S Reflectance Sensor: 1-Channel, 8mm Wide, RC Output, Side-Entry Connector
Pololu RC Switch with Isolated Solid State Relay/Switch, SPST, 60V, 6A
Glideforce GF01-120503-2-66 Micro Linear Actuator with Feedback Potentiometer: 12V, 2.2kgf, 28mm/s, 30mm Stroke
Glideforce GF01-120505-2-66 Micro Linear Actuator with Feedback Potentiometer: 12V, 2.2kgf, 28mm/s, 50mm Stroke
JST PH-Style Cable with Female Pins for 0.1" Housings, 5-Pin, 30cm
JST SH-Style Cable, 4-Pin, Female-Female, 10cm
ACS37041KLHBLT-010B3 Current Sensor Compact Carrier -10A to +10A, 3.3V
JST PH-Style Cable, 6-Pin, Female-Female, 10cm
Log In
Pololu Robotics & Electronics
Shopping cart
(702) 262-6648
Same-day shipping, worldwide
Menu
Shop Blog Forum Support
My account Comments or questions? About Pololu Contact Ordering information Distributors