batteries

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batteries

Following is a summary of the characteristics of popular battery technologies. For more details, see lead acid, nickel cadmium, nickel metal hydride, lithium ion, lithium polymer, liquid metal battery, zinc air, CMOS battery and memory effect.

 CHARACTERISTICS OF RECHARGEABLE BATTERIESSelf                   Recharge         Dis-         Energy    Cycles    Fast   charge         Density   To 80%   Charge  Per Type    (Wh/Kg)*  Capacity  (hrs)  Month

 Nickel
  Cadmium   45-80    1500     1      20%

 Nickel Metal
  Hydride   60-120  300-500   2-4    30%

 Lithium
  Ion      110-160  300-500   2-4    10%

 Lithium
  Polymer  100-130  300-500   2-4    10%

 Lead Acid   30-50  200-300   8-16    5%

                    To 50%     Capacity
 Reusable
  Alkaline    80      50      2-3    0.3%


  Data courtesy of
  Cadex Electronics Inc. (www.cadex.com).

  * Wh/Kg = watt hours per kilogram



A Lot of Batteries
This roomful of lead acid batteries stands ready to drain itself entirely in less than a minute. It serves as interim power for a large datacenter between the time a power outage has been detected and the generators can come up to full speed.
References in classic literature ?
But he was attracted by the cleverness of the boys and gave them money to buy more wires and more batteries.
By a pretty maneuver two of the vessels of Helium gained a position above their adversaries, from which they poured upon them from their keel bomb batteries a perfect torrent of exploding bombs.
When, half suffocated, I raised my head above water, the Martian's hood pointed at the batteries that were still firing across the river, and as it advanced it swung loose what must have been the generator of the Heat-Ray.
When the generals were all assembled, Washington consulted them about a plan for storming the English batteries.
They cordially hated them; but the impulses of their resentment were neutralized by their dread of the floating batteries, which lay with their fatal tubes ostentatiously pointed, not at fortifications and redoubts, but at a handful of bamboo sheds, sheltered in a grove of cocoanuts
At the two extremities of the port, in order that their fires should converge upon the great axis of the ellipsis formed by the basin, in the first place, two batteries had been raised, evidently destined to receive flank pieces, for D'Artagnan saw the workmen finishing the platform and making ready the demi-circumference in wood upon which the wheels of the pieces might turn to embrace every direction over the epaulement.
The review ended in a glorious chase across the plain - batteries thundering after cavalry to the huge disgust of the White Hussars, and the Tyneside Tail Twisters hunting a Sikh Regiment till the lean, lathy Singhs panted with exhaustion.
A few larger ones there were, but these kept high aloft dropping bombs upon the temples from their keel batteries.
We landed under the walls of a little fort, armed with batteries of twelve-and-thirty-two-pounders, which Horta considered a most formidable institution, but if we were ever to get after it with one of our turreted monitors, they would have to move it out in the country if they wanted it where they could go and find it again when they needed it.
Kennedy was preparing to discharge all his batteries into the middle of the ascending multitude, but what could he have done against such a numberless army?
Yes, and let the cannoniers mount their batteries, the artillerymen be at their pieces, and be particularly watchful of the coast batteries.
The wide expanse that opened out before the heights on which the Russian batteries stood guarding the bridge was at times veiled by a diaphanous curtain of slanting rain, and then, suddenly spread out in the sunlight, far-distant objects could be clearly seen glittering as though freshly varnished.