Lithiumion Polymer Battery Portable Power Bank

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Loading Port:: Guangzhou

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: 103000 /month

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Specifications

1.The overcharge protection function.

2. Discharge while Charge

3. Best qulity battery

4. Capacity 1800 mA& above available

5. Customized Logo,Packing

6. CE/RHOS/FCC/MSDS/UN38.3

7. Switch Button: 5V/1000mA±0.5%、5V/500mA± 0.5%

8. Flash Light Function

9. Short circuit protection

Q: A power house, P, is on one bank of a straight river 200 m wide, and a factory, F, is on the opposite bank 400 m down stream from P. The cable has to be taken across the river under water at a cost of $6/m. On land the cost is $3/m. What path should be chosen so that the cost is minimized?: Call the point across the river from the power house P' Call the point of intersection of the cable with the opposite bank C, which defines right triangle PP'C Let x be the distance from P' to C The two legs of triangle PP'C are 200 and x So the hypotenuse (the distance the cable travels underwater) is sqrt(200^2 + x^2) The distance the cable travels along the shore is (400 - x) (the distance from C to F) cost under water: 6sqrt(200^2 + x^2) cost on land: 3(400 - x) 1200 - 3x Total cost 6sqrt(200^2 + x^2) + 1200 - 3x Find derivative of cost: 6(2x) / (2sqrt(200^2 + x^2)) - 3 6x/sqrt(200^2 + x^2) - 3 Where derivative 0 will be a min for the cost 6x / sqrt(200^2 + x^2) 3 2x sqrt(200^2 + x^2) 4x^2 200^2 + x^2 3x^2 200^2 x^2 200^2 / 3 x +/- sqrt(200^2 / 3) +/- 200 / sqrt(3) but discard the negative root (since this won't be the minimum cost), so the distance from P' to the cable hitting land should be 200 / sqrt(3) 200 / (3^(1/2))

Q: I read that there is a World Bank out of Europe that controls the flow of real money and procedures to smaller national banks in the U.S. even small city banks and regional banks are controlled by the World Bank? They have the ultimate power for most countries banks. Is this true?: No. At least not in the US. The Fed (US Government) controls the small banks in the US

Q: I know that some banks as soon as you open an account with them they give you like 100 dollars worth of overdraft protection or some give you more. does everybank have the power to do that or is it just some banks. is it at the banks discrepency? sbcs: overdraft is a loan( at about 20%),so if your talking BIG amounts, they will check your credit,,small amts, just a courtesy

Q: What does the mobile power rating mean?: Mobile power will have a mobile conversion rate, usually 80% -92%.

Q: If you are going to build a solar dish using photovoltaic cells to power a 40,000 homes, would you use a utility grid or battery bank?: Solar dishes are not used to drive photovoltaic cells. You collect the solar radiation direct on the photocells. And usually feed that power to a battery bank for storage until needed. Solar dishes concentrate the solar energy to be used either to warm water ( for heating ) or to boil water, for electricity production, which again is usually stored in battery banks. For large scale ( 40,000 homes is large ) it might make sense to store the energy as GPE in a high level lake ( called pumped storage ) or as molten salt and you would then need a grid to distribute the energy to those who need it. Note that the grid itself does not store any energy, so the choice you are given , grid , or battery bank, doesn't make sense. They do not do the same job.

Q: how does the bank of England setting interest rates affect people unless they have a mortgage with thebank of England because don't individual banks set their own interest rates? Sorry if this is a stupid question I just don't understand it: As I understand it a matter of supply and demand. Bank of England is a central bank. A central bank has the authority to set a target rate. It then uses it powers to borrow lend, and print money until there is sufficient demand or supply of money to cause interest rate to move to the target rate.

Q: I was recently told by a family member that because they are Power of attorney, they can spend money of the estate any way they wish. Can a Power of Attorney in the state of Maryland, spend, AT WILL, any monies they wish, according to their judgement, without having to give an account to the offspring of the deceased, where there is no will. Does anyone know about this type of thing? We are not getting any information about anything. If we ask questions, we get, I can do whatever I want because I am power of attorney and I don't answer to you!: Power of attorney is a legal document which Person A signs to vest Person B with the authority to sign certain legal documents and accomplish certain tasks on Person A's behalf. Any human being who says I am power of attorney is claiming to be a piece of paper, and is thus a doofus. Even if the person HAS power of attorney, it ends when Person A (the signer) dies. Once a person dies, any power of attorney dies with them. The executor then has power over the estate according to the terms of the will. Any beneficiary of the will has standing to file suit against the executor or power of attorney and demand an accounting, especially since they're making statements like that. If there is no will, any of the people who stand to inherit according to the laws of intestate succession (the laws of who gets a dead guy's stuff when there's no will) can bring suit against this person. If they are wielding a power of attorney post mortem (after the principal's death), they may owe the estate every dollar they took.

Q: If people have no confidence in central banks, does that mean that money can lose its value, since its signed by the governor? Will it be possible that people lose confidence in money or central bank that they barter to get goods and services? Can other banks issue money instead of central banks of a country?: The buying power of money lies in people's willingness to accept it, so it is very much vulnerable to people's belief in it. People can lose confidence in a currency and look for alternatives such as barter or gold or other nation's currencies, in places like Zimbabwe this is happening today. Most nations do not allow banks other than the central bank to issue currency, although some do allow other national currencies to be accepted.

Q: I recently bought a power bank at Walmart for 15$. I am wondering if its any good or i could have bought one for a better deal. Here are features Capacity, Input: DC 5.0V-1A, Output: 5.0V-2.1A. It comes with a light feature and a battery power indicator.: The value is based on the size (capacity) of the battery in the device. Small ones are typically around two Amp-Hour, the big ones 10 - 12 AH. Prices vary tremendously and retail stores tend to be more expensive than buying online. If it's around 2 - 3AH (2000 - 3000 mAH) or more it's not a bad deal.

Q: Do they want the West Bank to be part of Israel or the future Palestinian state? (If there will be one): That's the greatest contention between Isaeli Jews and Palestinian arabs.

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