Comments by Mark L.

  • Understanding battery capacity: Ah is not A

    Understanding battery capacity: Ah is not A

    - 10 June 2015

    I am looking to figure out a way to convert a battery powered hand tool to a 110v plug in. I want to use a DC power supply to plug into the power tool. the adapt part should be easy,, but the power ratings are confusing me,,, the power tools require a 12v Dc 2.0 AH. I have a box full of old power supplies that plug into 110 and have various output ratings,,, but mostly in outputs rated in MA or just amps. Many of my power supplies have very high ratings ,, one goes up to 10 amp. How does AH relate to Amp with the voltage staying the same. Does all this change with the load ?? I work on cars and I am familiar with DC 12 volt amps and watts. How does this all figure out as to what 110 v power supply with 12v dc output supply I should use in relation to AH ??

New Products

Pololu I²C Isolator with Connectors, ISO1640
JST PH-Style Cable, 6-Pin, Female-Female, 10cm
ACS37041KLHBLT-030B5 Current Sensor Micro Carrier -30A to +30A, 5V
JST PH-Style Cable with Female Pins for 0.1" Housings, 4-Pin, 12cm
Pololu Reverse Voltage Protector, 4-60V, 12A
Breakout for JST PH-Style Connector, 6-Pin Male Top-Entry, with SH
ACS37030LLZATR-040B3 Current Sensor Large Carrier -40A to +40A, 3.3V
JST SH-Style Cable, 2-Pin, Female-Female, 25cm
JST SH-Style Connector Board for Micro Metal Gearmotors, 2-Pin, Back-Entry (2-Pack)
QTR-MD-01RC-S Reflectance Sensor: 1-Channel, 8mm Wide, RC Output, Side-Entry Connector
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