About metal hydride?

When I fill metal hydride in tank or cylinder to storage Hydrogen gas Do I must refilling agin metal hydride to the tank or cylinder to storage Hydrogen?

Question by Hamzaaite 1 year ago  |  last reply 1 year ago


Can I charge Nickel Metal Hydride batteries with an old NiCad charger?

I have a NiCad charger (circa 1994) in good condition and would like to use it, even if it would take 10 or 15 hours to charge my Nickel Metal Hydride batteries as I use a lot of them.

Question by 10 years ago  |  last reply 9 years ago


DIY Rechargeable Cell Chemistry?

Hi i was wondering if there was any electrically reversible battery chemistries that can be made from around the house materials like copper wire, iron nails, galvanized nails, graphite rods, aluminum foil, and other items like those.

Question by LiquidLightning 8 years ago  |  last reply 6 years ago


Do Nickel-Metal Hydride batteries make a quiet popping sound when recharging? Answered

          I am recharging my Ni-MH batteries today (Wii-motes eat them up fast!) and I was wondering if it is normal to hear a quiet popping noise coming from the batteries? it sounds like tiny bubbles popping--very similar to the sound carbonated drinks make after being poured out of the original container.         I believe this noise is a result of the reversing chemical reaction being created inside the battery. the batteries shown below are my exact brand and model.         Is anyone else experiencing this phenomenon? If so, do you think it is normal? Leave your thoughts, comments, and otherwise below!      =D

Question by jensenr30 8 years ago  |  last reply 8 years ago


electrodeposition

I am looking for a feasible DIY method of depositing aluminum from solution or vapor through electrostatic or other means. I've found one possible process using an ethereal solution of Aluminum Trichloride and Lithium Hydride. Will this allow an aluminum electrode to ionize into solution without adding more and more AlCl3? Is there a better way, such as potentially vapor deposition? Has anyone had experience at this? What are potential problems and how would you circumvent them?

Topic by bowakowa 10 years ago  |  last reply 9 years ago


hybrid go kart?

We r making hybrid go kart with 1 hp motor for hybrid go kart challenge which battery pack will be good choice 1.Lead acid 2.Ni metal hydride because of cost constraint we can't use li ion so if u know any other good batteries with low cost plz tell info: 48v 150 amps initial current energy efficient

Question by vpsingh92 5 years ago  |  last reply 4 years ago


can I charge an ipod touch 2nd generation with 4.8 volts of electricity?

I just got an ipod touch, and I noticed the battery gets drained very quickly when I am using wifi, so i figured maybe if I put 4 nickel-metal hydride (rechargable 1.2 volts each) batteries in series in a container, and added a female usb plug, it would be enough to power the ipod touch. Anyone think that would be enough to work?

Question by carrierpilot1357 9 years ago  |  last reply 9 years ago


CHALLENGE 60% efficient solar build

I would really love to see this Instructable be done but i don't have the technical background or resources to do so. It seems like a pretty easy build and looks like it can be done with common items. If the project is done correctly it should be a very powerful source of energy for free. It converts solar energy at 60% efficiency which is almost twice as much as current solar panels. It works by converting solar heat into electricity by heating hydride (which is hard to find but i think it can be replaced with a refridgerant) into a gas, which generates pressure to run a motor which runs a generator producing electricity and then the gas is converted back into the liquid state. The project will replicate Solar Powered Electric Generator Please contribute the time to building this it will pay off tons. Thanks To Everyone Who Helps.Mark

Topic by BTBAMYEAH 10 years ago  |  last reply 10 years ago


I rebuilt a battery and it didn't work. why? Answered

Today i got the 12 batteries required to rebuild the battery in my powerbook 190. i dont know the condidtion of the parts inside the laptop, but it must still be in a somewhat working order because when i hooked it up to an ac adapter (12v, 15a) before, its power light turned on and it made some noises. it didn't fully turn on though, because it needed 24v, not 12. hoping that rebuilding the battery pack would help, i bought 4 cordless phone batteries, each consisting of 3 smaller batteries and equaling 3.6v. all together that created the 14.4v that is needed to replace the original, acid leaked batteries. i wired them in series to get the 14.4v. I think that it may have not worked because the original batteries were nimh (nickel metal-hydride), and these new ones were nicd (nickel cadmium). Upon observing the internals of the laptop earlier, before i bought the batteries, i noticed some peculiar things: -there were a few spots where some components were added, (eg- resistors, capacitors, jumper wires, all were smt) -a unbranded piece in the battery power area, labeled on the board as XFER1. it is black and has five connections on each side of the component, which seem  to have copper wires attached to them leading inside the component. -no marked fuses on the board. the (apple released) manual for disassembling the machine states "you can blow a (soldered) fuse on the board", but there are no spots where a fx (x representing a number, eg: f1) is present, and most of the smt components in the suspected area are not marked and lok much like the same piece. can anyone help me figure out what may be wrong? the ac adapter port works but the battery doesn't, would uploading pictures help people help me?

Question by zack247 8 years ago  |  last reply 8 years ago


Toyota Will Offer a Plug-In Hybrid by 2010

If you make it, they will come. Or something.CalCars, the California Cars Initiative, has not only been campaigning for plug-in hybrid vehicles, they were the first to build a plug-in Toyota Prius. CalCars longstanding, and really quite simple, thesis is that plug-in hybrids can achieve 100+ MPG using today's technology:We promote plug-in hybrids (PHEVs). PHEVs are like regular hybrids but with larger batteries and the ability to re-charge from a standard outlet (mostly at night). They're the best of both worlds: local travel is electric, and you always have a gas-tank backup. More details here.Toyota seems to have finally received the message, now pledging to offer a plug-in hybrid by 2010: Toyota Will Offer a Plug-In Hybrid by 2010 (NYT). From the article:DETROIT -- The Toyota Motor Corporation, which leads the world's automakers in sales of hybrid-electric vehicles, announced Sunday night that it would build its first plug-in hybrid by 2010.The move puts Toyota in direct competition with General Motors, which has announced plans to sell its own plug-in hybrid vehicle, the Chevrolet Volt, sometime around 2010.Katsuaki Watanabe, the president of Toyota, announced the company's plans at the Detroit auto show as part of a series of environmental steps.Mr. Watanabe said Toyota, best known for its Prius hybrid car, would develop a fleet of plug-in hybrids that run on lithium-ion batteries, instead of the nickel-metal hydride batteries that power the Prius and other Toyota models.Plug-in hybrids differ from the current hybrid vehicles in that they can be recharged externally, from an ordinary power outlet. In a conventional hybrid the battery is recharged from power generated by its wheels.Mr. Watanabe said the lithium-ion fleet would be made available first to Toyota's commercial customers around the world, like government agencies and corporations, including some in the United States. He did not say when they would be available to consumers.Another case of hackers' solutions becoming mainstream? Definitely!

Topic by ewilhelm 11 years ago  |  last reply 11 years ago


Only read this if you are a kind person. Thank you.

Thank you for taking time to read this post. I realize it is rather long. If you are not a patient person, you may wish to simply skip reading this.I live in Washington DC and am looking to purchase something very specific, preferably from a reputable online retailer. I am a simple person, without any formal education. I know nothing about electronics or engineering. I hope you can be patient with those facts. I have no tools, no skills, no money, no knowledge.I'm searching for something that has been surprisingly difficult to find. Please, if you haven't got anything constructive to comment about this post, would you please just not say anything? Life is already difficult enough without negative words or sarcasm. Perhaps you might know of other internet consumer bulletin boards/forums that might be better places to ask this question? There don't seem to be very many at all.I am well aware that most modern cell phones easily fill the requirements that I am about to describe. Unfortunately, this item is needed for elderly people who are very suspicious of and dislike all things new. They violently refuse to accept a cell phone.Even if perfect, it's going to be a battle to get them to try it or use what I am searching for.So. Here we go. Maybe I can't find ALL the features, but here is what I am hoping to find:This needs to be a digital timer that can be set to go off at a minimum of six different times in one twenty four hour period, regularly.It has to have both an audible alarm and a strong vibration, and it has to be switchable between these two. Even better if it also flashes or lights up when the alarm goes off, and that also has to be optional, switchable. Very good if the strength of the sound or vibration can be adjusted easily.Should have a belt clip, preferably made out of metal, not cheap plastic.Should have a place where a neck rope could be easily attached and detached.Should have buttons that can be locked, so that no accidental changes by accidental bumping will occur.Should be water resistant. I'm talking about it being able to take a splash from a sink, not something to withstand being taken in the shower.Should also function as a typical normal digital watch with calendar feature. should be SWITCHABLE between calendar and clock view, so that all letters and numbers are as LARGE as physically possible,not all crammed on one tiny screen.Display should be larger than a normal watch, but the overall device must be small enough that a senior would not be upset to wear it around the neck or put it in a pocket, such as a normal shirt pocket.Great if it includes a strong LED flashlight feature, something with an on/off button, NOT a button that you have to hold the button down every second that you want the light to beam.Display should either be always back lit or at least have a button that will make the display light up without having to hold that button down the entire time you want it back litGreat if it came with a DVD of instructions with video, not a flimsy booklet with tiny letters written by someone who can't correctly speak English.It must run on batteries that can be purchased at any national retail chain, such as WalMart or Target. Fine if it has a very long life rechargeable battery built in, but not so fine if that battery is welded in so that it deliberately cannot ever be replaced.Good if it is able to run on the type of rechargeable replaceable batteries such as Nickle Metal Hydride or one of the others, without damage to the device.If it MUST be a plug into the wall rechargeable type, the cable cannot be a tiny pain in backside USB cable, it should be very simple and EASY for someone with arthritis and bad eyesight to plug in, perhaps with a charging cradle dedicated for the purpose, which can just be left plugged in somewhere.The charging device should have bright clear LED lights showing both that the device is currently charging as it should be, and another light that will FLASH to indicate it is now fully charged.Should sell for a price that a person that worked a lower middle class life and now barely gets by on Social Security could afford to buy. This device is not for me, if that matters at all. It is for people I care about.

Question by bearcat2222 3 months ago