Customized Color LED Torch Power Bank for Mobile
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Customized Color Poratble LED Torch Power Bank For mobile
Battery Type:Lithium battery 18650
Capacity:1800mAh
Input Voltage/Current:5V/1A
Output Voltage/Current:5V/1A
Recycling Time:Above 500times
Item Size:105*22*22mm
Item N.W.:79g
OEM/ODM:Yes
Packing:Gift Box/Blister/Bulk
Warrantee & After-sale service
1.all of our products have 1 year warranty
2.man-made destroy will be exception
3.after the warrantee time, if we still in cooperation, we will give cost repairment if still can repair.
4.for reducing the cost of our customers, we can supply the materials or tech support to them, help them fix the problems in their hands
- 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: And what powers do the state governments have?
- They get there powers from the US and State Constitution. Read those documents to see what individual powers the various states have.
- Q: I’m looking to purchase an inverter for use on my boat. I have 3 12v batteries in parallel, with a switch. So, I save one for ignition, but the other 2 (260AH together) I use for appliances. Most applications are run through 12v, but I’m looking to run an AC mini fridge (propane and 12v fridges are too expensive and I already have this one), one laptop charger (85watts) and 1 usb phone charger. I’ve tried a 400w inverter but apparently the compressor turn on of the fridge is over the 800w surge that the inverter is capable of. So my question is 2. 1, can an 800w (1600w surge) inverter handle this 3 item load? 2, how much power loss will I be incurring from the inefficiency of the power inverter? I was told that a 400w inverter run on standby with no load for 24hrs would use about 9AH from my 12v bank. Not sure if that’s right or wrong or if I can assume an 800w would be 16AH or not?Thanks so much for the help
- I live on my boat and cruise full-time. So I am very familiar with the cost of being off the grid when it comes to electric. Your problem is not the inverter. . . Your problem is not enough batteries. . . So, in the long run, that propane or 12v refrigerator may not seem so expensive. I run 3 banks of 2 batteries each connected to two high output solar panels on my sailboat, and I can tell you as fact, my system will not run a 110v mini refrigerator on an inverter for more then an 8 hour day. . . it just won't happen. I run a 12v refrigerator, and also have a laptop running 24/7 and a cellphone charger - and all the comforts of home appliances - but I don't have enough battery power to run any of my 110v appliances for any more then just a few minutes at a time (ie: coffee pot, microwave, etc) and that's it. Your 110v mini refrigerator, together with the inverter - will suck your 2 batteries dry as a bone in just a few hours (2 maybe 3hrs if your lucky). So, you need to rethink your cooling needs, or invest in about 4 more batteries or even a small generator. . . If I were you, I would think hard on a 12v cold plate for an ice box - or simply just a ice box. My 'cold box' has a 12v cold plate (draws only 3 amps) and I put pack all my food in it, and sprinkle in a little rock salt - and it keeps stuff cold as ice for an entire week. (colder then my 12v refrigerator for the first 3 or 4 days).
- Q: I'm filling out a power of attorney and not sure what to put in the Capacity portion. Can someone tell me what the capacity means? :)
- Capacity is what title you hold, is this in the capacity of a Trustee, What/
- Q: 10pts to who ever answers best
- Collect taxes, make laws, build roads, maintain a court system, See concurrent powers
- Q: Guys can you help me out with this?List down methods of improving power factor and explain why.Thanks in advance.I need it in my take home exam. TY
- First - power factor cannot be corrected. The reason for this is that power factor cannot be incorrect. Power factor is what it is. It is the instantaneous angular relationship between voltage and current and is a consequence of the load being served. Power factor can be improved by adding power factor capacitors. That is usually the best and least expensive solution. But there are other options: - replace induction motors with synchronous motors. Induction motors typically have relatively low power factors, while synchronous motors can have very good power factors - up to unity in some cases. - select induction motors that more closely match the requirements of the driven load. Induction motors are typically oversized for the application, and therefore operate at a fraction of their true rating. Operating induction motors below their rating aggravates their already low power factor. - elevate system voltage. This is a relatively inexpensive solution that will result in a small increase in power factor. - replace overhead, open-wire circuits with cable circuits.
- Q: What is the definition of mobile power?
- In view of the increasingly diversified functions of digital products, the use of more frequent, and our daily life is also more and more closely related to how to improve the use of digital products, to facilitate people's lives, timely replenishment of power, to play its greatest function more important
- Q: but JFK passed Executive Order 11110 on June 4th, 1963 that was designed to put new currency, backed by silver, into curculation. Soon after his assassination this money was removed from curculation.How and why does the Fed have so much power? According to the section 8 of the Constitution congress is the only entity that has the right to do this.
- You bet, We all need to know that the Fed. Res. Bank is not a part of the Fed. Gov. But A privately owned Bank that is owned by private share holders that loan the money to the Fed. Gov. That's why on all our dollar bills it is labeled Federal Reserve Note. A Note is a loan,iecar note,promissory note.ect. and then the Fed. Gov. illegally forces us to pay Fed. Income Tax to pay back the loan from these LOAN SHARKS!!!!!!!!!! TO ANSWER YOUR QUESTION I'M MAD AS HELL!!! SO WHAT ARE WE GOING TO DO ABOUT IT!
- 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: i am traveling to tw. would like to know in taipei where is the spot to get cash from ATM. also would like to know if the power outlet configuration in taiwan is the same as that in the US. thank you.
- Yeah, the power outlets are the same as the US, so you dont really need to worry about that. The 2 plug type is more common, so you might need to bring a converter for the 3 prong type. Citibank has branches through out Taiwan, so if you find some Taiwan banks' atm not working, you can probably go to a Citi atm. Just be aware that you might encounter some fees from either the bank atm you are using and/or your bank.
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Customized Color LED Torch Power Bank for Mobile
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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