How many Mah is a standard 9V battery?
with regards to battery capacity, you did not specify what type of chemistry your 9V battery is, and it matters. Since you said plain and normal, I assume it is alkaline type. Expect between 400 and 600 mAh. A good quality panasonic industrial type shows 570 mAh.. low end type probably more like 400.
How many volts are in a 9 volt battery?
Generally, a battery is considered dead when it has fallen to about 60% of its original as-new voltage. In the case of a 1.5V, this corresponds to 0.8V, and for a 9V battery, about 5.4V.
How many Ma does a regular 9V battery produce?
How many mA does a 9V battery have? A standard 9V battery has about 400-600 mAh capacity. In the most basic terms, these batteries can supply about 500 milliamps for one hour before being “dead”. Does eneloop make 9V? Neither Sanyo nor Panasonic made or makes 9V Eneloop batteries. There is a 9V eneloop music booster though.
How many amps are in a fast charger?
This charge is more powerful than the previous option and delivers on up to 80 amps. This translates to anywhere between 9-52 miles of Tesla range per hour charging. Level 3 charge, which is hardly an option for homes and private buildings, is an ultra-fast, ultra high-power 480V circuit.
The World Is Battery Powered!
Why Is Battery Current Important?
- Suppose you aren't just buying a replacement battery for your favourite gadget. Suppose you need one for your Arduino project, your university thesis or the LED Christmas sweater you made yourself with a blinking Rudolf nose. Whatever it is you're doing that that battery maker didn't expect you to do, you want to know if the battery is going to handle the load you have in store fo…
Let's Have A Look at Our Contestants!
- For this test, I'll be looking at 9V batteries only. I chose the 9V form factor because it's compact, has a relatively high voltage and therefore is convenient to use in portable projects where small size and high power are desirable. This makes 9V batteries flexible to use for a variety of different tasks. In this test we'll be looking at: 1) Panasonic Super Heavy Duty Power (Carbon Zinc non-r…
The Test Setup
- In order to measure the maximum current each 9v battery can supply, we need to short-circuit them. This is dangerous so don't do it. That's why I've done it for you. Once short circuited, the voltage will drop and the current will rise. We need to measure both values to get a sense of how strong the battery is, although current alone will speak volumes regarding what the battery can d…
Test Results
- The video contains details too numerous for the scope of this article but I recommend having a look, as all information regarding the batteries tested, the setup, the time-lapse footage of the tests themselves, the post-test discussion, the raw data pulled from the graphs and the final ranking and conclusions are there. Below is a summary of the key metrics for each battery:
Conclusions
- As you can see from the results, the Lithium and Ni-MH produced the highest peak currents but due to their short duration, they would only be useful to you if you only needed a few seconds of performance from the battery. They are also kind of expensive so if you are on a budget, these batteries may not be the best choice. On the other hand, the Energizer Max and Duracell alkalin…
Where Do We Go from Here?
- If you look at the waveforms in the video you'll notice that no single battery is a clear winner across the board. Each one has something advantageous to offer the customer so picking the right one for your project will require more than a simple ranking. However, armed with this test data, you now have everything you need to make that decision conscientiously. The other article…