I'm buying new batteries for an electric wheelchair and I have 2 choices 35 AH and 50 AH. Nobody at the dealership can tell me for sure what the difference will make. I charge the batteries everynight so if longer lasting is the difference then I'll go for the 35 Ah which is half the price of the 50 Ah
2006-07-16 12:53:33 · 9 answers · asked by T2427537 2 in Science & Mathematics ➔ Earth Sciences & Geology
Ampere-hours is a measure of the storage capacity of the battery. In theory, a 50 AH battery will give you one ampere for fifty hours, or two amperes for twenty-five hours, etc. In practice, the actual amount of energy available depends somewhat on duty cycle, and as the battery nears full discharge, the voltage may drop too low to be useful. All that aside, you can expect the 50 AH battery to last about 43% longer on a charge than the 35 AH one, and to weigh and cost more. If the capacity of the smaller battery is adequate for your application, the larger one holds no advantage.
2006-07-16 13:17:43 · answer #1 · answered by injanier 7 · 1⤊ 0⤋
The Amp-Hour rating is a measure of the total electrical charge stored in the battery. A 35 Amp hour battery would produce 1 ammp for 35 hours, or 2 amps for 17.5 hours etc. Basically the 50 Amp-Hour battery will last 50/35 or 1.43 times longer than the 35 Amp-Hour battery. If the 35 amp hour battery lasts long enough between charges for your needs, it IS the better deal at 1/2 the price, but be certain it will provide enough electicity between charges for your use. That would depend on how much use it gets during the day between charges.
2006-07-16 13:08:46 · answer #2 · answered by stvrob_63 4 · 0⤊ 0⤋
Difference Amp
2016-10-17 23:13:39 · answer #3 · answered by mahler 4 · 0⤊ 0⤋
He's right. And the 35Ah will put out one amp for 35 hours. That's for calculation purposes only. The actual, in-the-field yield will be less due to "losses" of one sort and another. What is the AH rating of the battery in the thing now? I wouldn't go below that rating. Also, you're better off with a deep cycle unit. They cost more but last longer. To tell you the truth (and I know you want THAT) I'd go to a dealership that knows more about your unit and can keep you from making a costly mistake. Paying a little more could cost you less in the long run.
2006-07-16 13:06:55 · answer #4 · answered by DelK 7 · 0⤊ 0⤋
Going with all these wonderful answers and adding that if the wheelchair may be going over "rough terrain" the 50 AH battery will alow the chair to use more power longer. You charge them every night so 35 hours should be ok if the chair draws 1 amp. You cant hurt the chair as trhe chair will only draw what it needs.
2006-07-16 15:49:29 · answer #5 · answered by orion_1812@yahoo.com 6 · 0⤊ 0⤋
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2 Batteries = 24 volt x 7 AH = (24 x 7) watt hours = 168 watt hours 1 motor = 250 watt / 24 volt = 10.42 amps?? 7 AH / 13.7 amps = .51 hr x 60min/hr = about 30 minutes of runtime 168 wh / 250 watts = .672 hr x 60min/hr = about 40 minutes of runtime. So here are the figures worked a couple of different ways. This is the theory and the practice might be a little different. Good luck with the project. EDIT: 12Ah / 13.7A = .876 x 60min = about 53 minutes of runtime. Is this a big difference for you?
2016-04-06 08:54:50 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Amp is current.That is saying that current will run through one circuit for 50 hours with the 50AH battery and the other for 35 hours with the 35 AH battery. If you want longer lasting batteries then get the 50AH.
2006-07-16 13:19:36 · answer #7 · answered by isaac a 3 · 0⤊ 0⤋
50 AH has more power. It can produce 1 amp for 50 hours
2006-07-16 12:56:04 · answer #8 · answered by Bill 6 · 0⤊ 0⤋
i guess longer charge
2006-07-16 13:02:25 · answer #9 · answered by likeskansas 5 · 0⤊ 0⤋