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~ Comparison Of Battery Bank

Battery Bank Comparison

A battery bank is compared with other battery banks by the amounts of available voltage and amperage in each. On this page you will see examples of battery banks where the voltages and amperages are listed, according to what our supplier has told us.

Example:
As an example of small household item capacity: First you need to decide how much voltage and amperage that you need. The common household voltage is 110 to 120 volts for small items, so we say for calculations 120 volts. Then you need to decide how much amperage that you need. The common household breaker-box has a 100 amp rating for small items, so we say 100 amps. At this point you can go directly to the charts below and figure what you need, within reason, and we say “within reason” because the charts are estimates and can be changed by adding or subtracting batteries from the charts. Let's say that (for example) someone needed 120 volts and 100 amps, using Table BBP04 should be able to handle that. We multiplied the voltage (120 volts) by the current (100 amps) and got 120 x 100 = 12000 watts (or 12kilowatts, or 12KW, or 12 kilo volt amps, or 12 kva, or 12 KVA). How long do they want that backup supply to last? Let's say 4 hours is sufficient. That is a full load of 100 amps drawn at a continuous 120 volts for 4 hours. That would be row number 6 of that table,

6 18 4.83 80 12,000 5,760

which shows the maximum available wattage at 18 Kilo-Watts, the maximum estimated time for full draw on the batteries at 4.83 hours, the number of batteries required is 80, the price of the batteries (alone without anything else, and in the Frederick, Maryland area) is (according to our supplier as of August 15, 2008) $12,000, and the total weight (without shipping crates and packing) 5,760 pounds.

Further example:
Let's say that someone had an electrician put in a 60 amp breaker panel. That is less than 75 amps, so table BBP03 would work, and if they wanted twice the amount of hours (now 8 hours) of backup then row 8 of that table would work for the same price (estimated).

8 9 9.67 80 12,000 5,760


As you may have noticed, we estimate the amperage requirement higher than the need. Our battery supplier has informed us that we should overestimate a little because batteries vary in output under various conditions.

This is a battery bank comparison using deep draw batteries purchasable locally (Frederick County) in Maryland.

The prices listed are OUR costs as of August 15, 2008, and are subject to change. If you order these, our supplier (not we) will be making the sale and might have to add shipping and handling. These are heavy duty and VERY HEAVY in weight.

If you order 10 or more batteries, and the “shipping to” address is in Frederick County, Maryland then our supplier says that the shipping is FREE.

The following does not include installation at your site. But we CAN build a full battery backup for you AFTER and ONLY AFTER you have purchased a Wind Powered Generator from us. Wind Powered Generators come first. Buy at least one Wind Powered Generator from us and THEN we can give you a price for a full battery backup system. If you ask ahead of time, the answer is "no."

We do not manufacture these batteries. We do not guarantee these batteries. We have chosen these batteries because they seem to be the most reasonable for power backup at their price.

If you are uncertain of these prices, please check out the prices on the internet of other suppliers. We did and we found other places that were much higher in price.

We at reasonablepower.com do not know of anyone (other than us), at this time, that satisfies us with their grid ties, therefore we consider using batteries to be a reasonable storage of some of the wind power generator’s energy until it is needed.

Yes, you DO have permission to reprint this page with black ink or color only if you print this page in its entirety. Yes, you DO have permission to copy this page and post it elsewhere on the internet only if you post this page in its entirety and with nothing added and nothing removed and nothing changed.

wind powered generator




BASELINE   6 Volt   DC Batteries
Battery: CR245


Table BBP01:
Battery
Profile
Crown
Part No.
Volts Cold
Cranking
Amps
Reserve
Capacity
(minutes)
Length
(inches)
Width
(inches)
Height
(inches)
Weight
(pounds)
TALL
GC-2
CR-245 6 245 145 10.25 7.13 11.5 72


(We were told that the constant draw amps' rating is 75 amps. We included the cold cranking amps in the list since that is how we found it advertised, even though we have no use for this number.)

We were told that the Reserve Capacity for each of these batteries is 145 minutes when there is a 6 volt draw and a 75 amp draw (or a 450 watt draw) on the battery. The cold cranking amps rating is different from the constant draw amps rating. This was explained to us as meaning any combination of voltage and amperage draw which, when multiplied equal 450 watts, will last for approximately 145 minutes, with variations due to other factors like heat, etc.

We have spent quite a lot of effort and time considering battery bank setups and these batteries have impressed us. Specifically, we like their LONG run time, and their amperage capacity. We like that they are lead-acid batteries. We have found these to be standard batteries, and sufficiently available either off-the-shelf or orderable. We are not easily impressed by fads or trends, and it takes sufficient reason for us to decide on a product. Unless something changes, we suggest these batteries for battery-banking the electric energy from our Wind Powered Generators.


Table BBP02:
A,1 B C D E F
2
BASELINE   6 Volt   DC Batteries
as found for local purchase by reasonablepower.com for a low wind speed startup wind powered generator.
3
6 Volt   (75 Amp)   (450 Watts/each)


4 Watts Estimated
Hours
Batteries Price ($) Weight (lbs)
5 450 2.42 1 150 72
6 450 4.83 2 300 144
7 450 7.25 3 450 216
8 450 9.67 4 600 288
9 450 12.08 5 750 360
10 450 14.50 6 900 432
11 450 16.92 7 1,050 504
12 450 19.33 8 1,200 576
13 450 21.75 9 1,350 648
14 450 24.17 10 1,500 720
15 450 26.58 11 1,650 792
16 450 29.00 12 1,800 864
17 450 31.42 13 1,950 936
18 450 33.83 14 2,100 1,008



Table BBP03:
A,1 B C D E F
2 120 Volt   DC
Using 6 Volt Batteries
as found for local purchase by reasonablepower.com for a low wind speed startup wind powered generator.

3
120 Volt   (75 Amp)   (9 kilo-Watts/bank)


4 Kilo-Watts Estimated Hours Batteries Price ($) Weight (lbs)
5 9 2.42 20 3,000 1,440
6 9 4.83 40 6,000 2,880
7 9 7.25 60 9,000 4,320
8 9 9.67 80 12,000 5,760
9 9 12.08 100 15,000 7,200
10 9 14.50 120 18,000 8,640
11 9 16.92 140 21,000 10,080
12 9 19.33 160 24,000 11,520
13 9 21.75 180 27,000 12,960
14 9 24.17 200 30,000 14,400
15 9 26.58 220 33,000 15,840
16 9 29.00 240 36,000 17,280
17 9 31.42 260 39,000 18,720
18 9 33.83 280 42,000 20,160



Table BBP04:
A,1 B C D E F
2 120 Volt   DC
Using 6 Volt Batteries
as found for local purchase by reasonablepower.com for a low wind speed startup wind powered generator.

3
120 Volt   (150 Amp)   (18 kilo-Watts/bank)


4 Kilo-Watts Estimated Hours Batteries Price ($) Weight (lbs)
5 18 2.42 40 6,000 2,880
6 18 4.83 80 12,000 5,760
7 18 7.25 120 18,000 8,640
8 18 9.67 160 24,000 11,520
9 18 12.08 200 30,000 14,400
10 18 14.50 240 36,000 17,280
11 18 16.92 280 42,000 20,160
12 18 19.33 320 48,000 23,040
13 18 21.75 360 54,000 25,920
14 18 24.17 400 60,000 28,800
15 18 26.58 440 66,000 31,680
16 18 29.00 480 72,000 34,560
17 18 31.42 520 78,000 37,440
18 18 33.83 560 84,000 40,320



Table BBP05:
A,1 B C D E F
2 120 Volt   DC
Using 6 Volt Batteries
as found for local purchase by reasonablepower.com for a low wind speed startup wind powered generator.

3
120 Volt   (225 Amp)   (27 kilo-Watts/bank)


4 Kilo-Watts Estimated Hours Batteries Price ($) Weight (lbs)
5 27 2.42 60 9,000 4,320
6 27 4.83 120 18,000 8,640
7 27 7.25 180 27,000 12,960
8 27 9.67 240 36,000 17,280
9 27 12.08 300 45,000 21,600
10 27 14.50 360 54,000 25,920
11 27 16.92 420 63,000 30,240
12 27 19.33 480 72,000 34,560
13 27 21.75 540 81,000 38,880
14 27 24.17 600 90,000 43,200
15 27 26.58 660 99,000 47,520
16 27 29.00 720 108,000 51,840
17 27 31.42 780 117,000 56,160
18 27 33.83 840 126,000 60,480



Table BBP06:
A,1 B C D E F
2 240 Volt   DC
Using 6 Volt Batteries
as found for local purchase by reasonablepower.com for a low wind speed startup wind powered generator.

3
240 Volt   (75 Amp)   (18 kilo-Watts/bank)


4 Kilo-Watts Estimated Hours Batteries Price ($) Weight (lbs)
5 18 2.42 40 6,000 2,880
6 18 4.83 80 12,000 5,760
7 18 7.25 120 18,000 8,640
8 18 9.67 160 24,000 11,520
9 18 12.08 200 30,000 14,400
10 18 14.50 240 36,000 17,280
11 18 16.92 280 42,000 20,160
12 18 19.33 320 48,000 23,040
13 18 21.75 360 54,000 25,920
14 18 24.17 400 60,000 28,800
15 18 26.58 440 66,000 31,680
16 18 29.00 480 72,000 34,560
17 18 31.42 520 78,000 37,440
18 18 33.83 560 84,000 40,320



Table BBP07:
A,1 B C D E F
2 240 Volt   DC
Using 6 Volt Batteries
as found for local purchase by reasonablepower.com for a low wind speed startup wind powered generator.

3
240 Volt   (150 Amp)   (36 kilo-Watts/bank)


4 Kilo-Watts Estimated Hours Batteries Price ($) Weight (lbs)
5 36 2.42 80 12,000 5,760
6 36 4.83 160 24,000 11,520
7 36 7.25 240 36,000 17,280
8 36 9.67 320 48,000 23,040
9 36 12.08 400 60,000 28,800
10 36 14.50 480 72,000 34,560
11 36 16.92 560 84,000 40,320
12 36 19.33 640 96,000 46,080
13 36 21.75 720 108,000 51,840
14 36 24.17 800 120,000 57,600
15 36 26.58 880 132,000 63,360
16 36 29.00 960 144,000 69,120
17 36 31.42 1,040 156,000 74,880
18 36 33.83 1,120 168,000 80,640



Table BBP08:
A,1 B C D E F
2 240 Volt   DC
Using 6 Volt Batteries
as found for local purchase by reasonablepower.com for a low wind speed startup wind powered generator.

3
240 Volt   (225 Amp)   (54 kilo-Watts/bank)


4 Kilo-Watts Estimated Hours Batteries Price ($) Weight (lbs)
5 54 2.42 120 18,000 8,640
6 54 4.83 240 36,000 17,280
7 54 7.25 360 54,000 25,920
8 54 9.67 480 72,000 34,560
9 54 12.08 600 90,000 43,200
10 54 14.50 720 108,000 51,840
11 54 16.92 840 126,000 60,480
12 54 19.33 960 144,000 69,120
13 54 21.75 1,080 162,000 77,760
14 54 24.17 1,200 180,000 86,400
15 54 26.58 1,320 198,000 95,040
16 54 29.00 1,440 216,000 103,680
17 54 31.42 1,560 234,000 112,320
18 54 33.83 1,680 252,000 120,960

 

battery bank comparison ! Here we discuss the topic of : What is battery bank comparison?


from the - Wind Powered Generators - "Nice to Know" series
at reasonablepower.com
Right here in the United States of America.

 

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