I am looking to use 6V latern batteries for a power supply. I was wanting to know what kind of power I can get out of it without over drawing on the amps.
2007-06-06 11:14:03 · 5 answers · asked by CoveEnt 4 in Science & Mathematics ➔ Engineering
The answer above is helpful with regard to battery capacity, but I do not believe it answers your question, but I think I understand where you're headed with this.
Each of the battery chemistries has a typical rate of discharge based upon internal resistance. For example, it would be incorrect to assume that a battery with a 10 amp-hour capacity could be discharged for 1 minute at 600 amps (the internal resistance of the battery wouldn't allow this) as it would for 600 minutes at 1 amps.
I have found references to alkaline 6V units with an internal resistance of 2.1 ohms. That would limit you to an absolute maximum of 2.86 amps against a load of a dead short. Understand that this changes with temperature (cold = less, warm = more).
Also, understand that your voltage drop will increase more quickly under high loads. You don't say what your absolute minimum operating voltage is for whatever you are powering, and in the end, that will likely dictate just how fast you can draw power from your 6V lantern batteries. The manufacturers have curves of load vs. voltage at nominal temperatures that may help you in your final decision.
Non-rechargable (primary) lantern batteries can turn into quite a serious investment. In terms of power per volume, or in terms of $ per power, you'd be better off with sealed lead acid or (as suggested above) deep cycle marine (but they're usually quite large), or even an array of NiMH "D" size cells. Unless you don't plan to use this much, the price of decent alkaline 6V lantern batteries is going to eat you up!
2007-06-06 13:49:19 · answer #1 · answered by C Anderson 5 · 0⤊ 0⤋
No Azuka, you're not correct. Putting 4 aa batteries in series makes 6 volts. Then they create 8 banks of 4 aa batteries in series and then put the 8 banks of 4 in parallel which increases amperage output but not voltage. So it's indeed possible, depending on how they are wired, to have 32 AA batteries and still have only 6 volts. An average AA output is ~ 2000 mAh. So each bank of 4 would have 2000 mah and then putting them in 8 banks in parallel would make 2000 x 8 = 16,000 mAh (16 amp hours) at 6 volts. As been pointed out, the internal resistance would limit output to around an amp, maybe 2 without dropping the output voltage too much. But you certainly can't draw 16 amps for an hour.
2015-05-03 12:42:12 · answer #2 · answered by + † + Tobias 6 · 0⤊ 1⤋
12 Volt Lantern Battery
2016-09-30 21:20:49 · answer #3 · answered by Anonymous · 0⤊ 0⤋
6 Volt Flashlight Battery
2016-12-28 05:47:11 · answer #4 · answered by ? 3 · 0⤊ 0⤋
The typical 6 volt alkaline lantern battery that you buy at the grocery store has a conservative rating of around 11,000 mAh or 11 Ah (amp-hours).
In a perfect world, if your equipment was drawing ½ amp, the battery would last 11 Ah ÷ 0.5 A = 22 hours.
You might wish to consider getting a deep cycle rechargeable battery.
2007-06-06 12:05:39 · answer #5 · answered by Thomas C 6 · 3⤊ 0⤋