More than fifteen percent of golfers experience problems with their knees, hips, or backs and this number is growing as Baby Boomers enter their golden years.Manufacturers of golf playing aids continue to offer improvements in assistive golf technology to meet the special needs of this burgeoning segment of the golfing population.

The electric golf caddy or trolley comes to mind as a favorite among both able and disabled golf players.Although the numerous cardio-vascular health benefits of walking the golf course are widely known, the four or five hour trek isnt easy an easy haul for everyone.

Even those who are able to make the walk with relative ease would rather focus their attention on their game than struggle with a 30 to 40 pound bag. Here is where the electric golf caddy or trolley shows what it’s advantages are.Compared to other options, the electric golf caddy proves itself to be the ideal means of getting around the course.

First there is the walking option which is not the primary choice for someone with back, knee or hip problems. The repetitive job of lifting the golf bag, carrying it from hole to hole and placing it down is stressful on the joints and back even for a person with no disability.In comparison our electric golf caddy or trolley which has two models makes transporting your golf equipment effortless.Our best model is remote control and the other is manual however, both feature high tech drive and braking technology.They let you keep your attention where it belongs on your game. Research proves that this additional focus when using an electric caddy improves a golfer’s handicap.

Second, theres the option of riding on a golf cart. Ride-on golf carts are limited in where they can travel especially on path-restricted courses, and theyre quite hard ecologically on the grounds.Golf carts you ride on do not provide any health benefits in comparison to walking. The electric golf caddy can go anywhere you do and has no negative environmental impact to the course.This enhanced mobility will speed up play as the players can move directly from point to point without path restrictions found with a ride on cart.

Third, theres the option of using a traditional push or pull cart.While this option does allow the golfer to walk the course, it lacks the convenience and automated features of using an electric caddy.The push or pull cart is no bargain in the effort and strain department, either, especially when you are traveling with it over hilly terrain.

Whether you choose the remote control or manual electric golf caddy, both versions have benefits and features that make your choice a winning one.

With their lightweight high-tech frames, both of our electric golf caddies are sturdily constructed and have durable bag support components.We offer both models in black, silver, or stainless steel finishes.

Both models are simple to setup. The manual control electric golf caddy sets up in one step with a fold design that has an adjustable height mechanism that locks.The remote control electric golf caddy features an easy two-step, one-click setup design.

Once the game day is over, preparing the electric caddy for transport is as easy as the setup. The easy fold design collpases the caddy into one piece to fit into any vehicle trunk with no need to remove the battery.Each of our electric golf caddies is powered by a long-lasting battery that is sufficient for a minimum of 27 holes on a full charge. (We include the battery and charger with your purchase.)In the unlikely event that your battery ever did run out of juice, both models can be easily pushed without power.Both models feature battery charge indicators.

The manual electric golf caddy has a powerful noiseless motor, while the remote controlled electric golf caddy has two powerful independently controlled noisless motors.The remote controlled electric golf caddy has two powerful independantly controlled noiseless motors, while the manual one has a powerful noisless motor.

Both models allow you to set the pace by combining easy to use, seamless rheostat speed control with torque wheel control.

They also come with a cruise control button; if you press it after you stop, the caddy automatically goes back to your regular speed.

The remote control electric golf caddy has a wide-range remote control, features directional controls (forward, sideways, and reverse), a timed advance function, and emergency and soft coasting stop functions.It gives you full control up to 120 yards, and stops automatically if it does not receive commands from the remote control within 25 seconds.

Our electric golf caddies will never leave you stranded out on the course. Read our testimonials on our site.Both feature durable wheels that provide excellent traction and maneuverability. Both models come with a score card holder and other accessories are available.

Assistive golf aids like the electric golf caddy restore recreation and ability to the growing number of seniors and disabled golfers who might not otherwise be able to play the game due to physical discomfort and mobility challenges. For convenience, comfort, and overall value, the electric golf caddy is an assistive playing aid thats hard to beat.

You used to be able to squeeze the white dots to measure remaining battery life.

Maybe it's more expensive for them to make those

The potential difference across the terminals of a battery is 8.2 V when there is a current of 1.49 A in the battery from the negative to the positive terminal. When the current is 3.59 A in the reverse direction, the potential difference becomes 9.7 V.
What is the internal resistance of the battery?
What is the emf of the battery?

___________________________-

The potential difference across the terminals=V1= 8.2 V

Current = i1 = 1.49 A

The potential difference becomes = V2= 9.7 V.

the current = i2 = -3.59 A

The internal resistance of the battery = r

The emf of the battery= E

The emf = E =V1+ i1r………….(1)

Also the emf = E = V2+ i2r…………(2)

Equating (1) and (2)

V1+ i1r = V2+ i2r

i1r - i2 r = V2-V1

r(i1-i2) =V2 - V1

r = (V2-V1) / (i1-i2)

Internal resistance= r=1.2 /5.08

Internal resistance= r =0.2362 ohm

emf = E = 8.852 V
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I am wondering why one would want Dual batteries in a Car Audio Setup?

Is this done so that when the audio system is on when the car engine is off it will have more current to give?

Will dual batteries have any effect on the power delivery to the audio system when the car is running?

Can I just hook two identical model batteries in parallel?

Some wisdom is appreciated, Thanks.

DO NOT wire your batteries in parallel as OR suggests or you will be listening to your system with the engine off one day and you won't be able to start your car.

The purpose of a dual battery set-up is to have one battery for your car audio system and one for your vehicle. This is done by using a battery isolator. This way you can listen to your stereo without draining your starting battery.

Make sure you use two of the same size batteries or your isolator will only allow the larger battery to charge as much as the smaller battery. Use deep cycle batteries or Optima's. Preferably a sealed Gel cell battery if your secondary battery will be located within the passenger compartment of the vehicle as a regular lead acid battery can and will give off hazardous fumes.

The isolator will not allow a back feed of one battery to the other. You can then Cap away till your heart's content on your amplifiers.

I had this identical set up on my car back in the day and I never had a power problem, starting problem or light dimming problem. It will cost you some money but it is the right way to do your system.

From my experience, I have found that Nokia and Motorola phones are typically the best as it relates to reception. The Nokia phones typically make better use of the battery, though it varies from model to model. I would suggest looking at the specs for any phone you are considering and look at both talk time and standby time. A phone that has 12 hours of talk time is excellent, but more phones these days have less talk time because of the graphics and additional features. 7 hours of talk time, is actually pretty good these days.

Keep in mind that if you are going to use a Bluetooth headset that Bluetooth is a huge drain on the battery and you will see your battery life shorten significantly. If you are going to use Bluetooth, I would suggest one of the Motorola headsets that is only on when you open it versus one that stays on all the time. These are much more efficient.

To get the most out of a cell phone, it is always a good idea to purchase a phone from a cellular provider. The reason for this is that the cellular providers put devices through rugged testing and only choose devices that meet strict criteria, including reception, dropped calls, etc.

Many of the manufacturers make phones for both CDMA and GSM networks. There are devices that are great on the CDMA network, but not so good on the GSM netWith the major providers, you will need to have a device from that provider. You don’t have to buy a new device, but you wouldn’t be able to start up service unless you had a device from that provider. So, if you purchased an unlocked GSM device on-line and then went to T-Mobile, for example, and provided them with the IMEI number of that device, they would tell you that the device was not a T-Mobile device and that you would not be able to start up service without a T-Mobile device.

If, however, you started up service with T-Mobile and got a phone at little or no charge and then purchased an unlocked GSM device on-line, you could take the SIM card from your T-Mobile phone and put it into the new device and it would work.

A couple of things to keep in mind. The major carriers all test the devices they sell extensively and only sell devices that meet very specific criteria. If you were to use a device that was not supported by the carrier, you may have issues, such as dropped calls, etc.

When you purchase your device through the carriers, with your service, the device is under warranty (typically 12 months) with the provider. You are also guaranteed that the device has been tested on the specific network, etc.

So, since it appears that you already have cell service…if it is GSM service (i.e., T-Mobile or Cingular) and you purchased a GSM phone on line, all you would have to do is put your SIM card in the device.

If you have CDMA, Verizon or Sprint, you are going to have a much harder time because CDMA does not use SIM cards – your wireless number is associated with the ESN number of the device. I believe you would have a hard time getting them to put your non-carrier phone ESN into the system.

Most providers will allow you to upgrade your phone every 24 months and at that time, you can take advantage of the same types of discounts that new customers get on devices.
work.

Electric wheelchairs are either rear or front wheel driven. Some of them are center driven or four wheel driven. These powerchairs come in many varieties like small portable models, foldable models, and models that can be dis-assembled. Large, full-featured electric wheelchairs that are called rehab chairs are also available. Powerchairs are designed for persons who have arm and leg disablement. Such people would find the operations of hand propelled wheelchairs quite difficult.

Electric wheelchairs are fitted with electric motors that are powered by 4 to 5 ampere rechargeable batteries. These motors are outboard boat engine types. The batteries come in dry or wet types. Dry type batteries are the most preferred ones due to ease of operation and maintenance. Electric wheelchairs are also fitted with battery chargers so that plugging into standard wall outlets is easy.

Operating either a joystick or a controller usually controls electric wheelchairs. Hand controllers, chin controllers, puff/sack controllers are specifically designed for persons with varying degrees of operational difficulty. The controller is the most expensive part of powerchairs and is quite delicate. Electric wheelchairs come with several optional functions like tilting, reclining seat and leg elevators, etc. to facilitate healthy and functional operations.

Electric wheelchairs for kids are generally those used by mentally disabled children or children affected by polio. These wheelchairs are custom made to suit the age of the child as well as the usage like indoors or outdoors or both. Polio affected kids and paraplegics were using hand supports till a few decades ago. Such hand supports normally resulted in severe body strain to the kids. The advent of electric wheelchair for kids has greatly relieved such kids of their suffering.

Travel had been on the rise and persons using wheelchairs are no exception. Traveling on vacation, travel for education, employment or participation in sports meets and general commuting for shopping, etc. have become indispensable for persons using electric wheelchairs. Portable and foldable models of wheelchairs require storage space, when not being used. As such, public transports like buses, trains and airplanes specifically provide electric wheelchair carriers. Buses with low boarding platforms that can literally lift wheelchairs into the buses have also been designed to serve such people. Such platforms are electrically or hydraulically operated.

Nowadays, in the United States, sales and service facilities for electric wheelchairs are quite widespread. You do not have to go too far to buy an electric wheelchair of your choice. As these powerchairs are made-to-order types, deliveries take some time but are normally very reliable. Electric wheelchair parts repair has also become quite easy, reliable and economical due to the healthy competition between the various electric wheelchair manufacturers.

Operation of an electric wheelchair by patients or disabled persons carries a certain amount of risk. Accidents could not be avoided at one time or another. Such accidents could be minor or major. Hence, insurance companies provide both accident/life insurance policies, as well as medicare policies to cover such risks. It is always advisable to take suitable insurance policies for physical and financial protection. Electric wheelchairs and medicare go hand-in-hand for persons confined to wheelchairs.

Electric power scooters, or mobility scooters as they are called, are normally fitted with two rear wheels, a seat with a flat area to place the feet and a handlebar in the front to operate one or two steerable front wheels. Swiveling seats are also available. Electric power scooters are invariably electric powered by rechargeable batteries that could be charged from standard electric outlets. Certain models of mobile scooters are gasoline-powered. Such electric power scooters have been most welcome for persons confined to wheelchairs. They find such scooters handy for commuting to schools and colleges as well as to workplaces and shopping. Electric power scooters are normally cheaper than powerchairs. Insurance companies and healthcare agencies like Medicare prefer to insure or extend medicare facilities for people using such scooters.

Welcome to the wonderful world of electronic accessories! They are the trend of this century and fascinate people of all ages. This is why every mobile phone owner would love to receive gadgets as gifts. If in the past you found it difficult to buy the perfect present for your friends and relatives, now you shouldn’t meet this problem any longer. Millions of people use mobile phones and can’t imagine their lives without them. If only a few years before cell phones were considered a luxury, they are now an absolute necessity.

When mobile phones first appeared, they were expensive and heavy, the battery life was severely limited and the reception was not quite good. But nowadays all these problems are gone, since producers constantly improve and update their models. Mobile phones seem to be miraculous gadgets which allow you to play games, listen to music, store detailed contact information, make to-do lists, download information from the Internet or take pictures. So if you can’t afford to give mobile phones as gifts, you could at least procure some fashionable gadgets for mobile phones and give them to your loved ones!

Mobile phones have enriched our lives and their invention has been a blessing in many ways. They help us to communicate efficiently with our families, friends and business partners. Producers are doing their best to innovate and to create the most sophisticated gadgets in order to keep up with the evolving needs of their clients. These modern accessories add value to mobile phones and fascinate everybody, especially technology addicted persons. For them, new accessories are the best gifts ever.

Genuine leather cases are the ideal products to protect mobile phones. If one of your friends has just bought an expensive cell, then you should give him a protective case that will prolong both the cleanliness and the life of his phone. Belt clips are other useful gadgets because they allow people to move more comfortably, being sure that their phones are securely fastened to their belts. You can find even vibrating belt clips, which are equipped with the vibrating call alert mode. This way no call will be missed and the phone’s battery will last longer. With so many attractive accessories, why should you worry about finding the right gifts?

Hands free kits will be very appreciated by those friends of yours who own a car. These kits provide an easy and very safe way for using the phone while driving. They also include a microphone and charge the phone’s battery using power from the car’s battery. Is there any car driver who wouldn’t be thrilled to receive such gifts? Or if they already have hands free kits, you could think about giving them a vehicle power charger, ideal for recharging their mobile phones in less than an hour. The circuit of this charger recognizes a full battery and automatically switches off. If you are still not convinced that gadgets can make great gifts for your friends, here are some other products you can take into consideration: Bluetooth headset, FM radio hands free, antenna booster sticker, hard plastic holster, long lasting batteries and we could go on forever with our list, because the technology will never stop advancing.

Makita tools have been favored by professional and home craftsmen for many years because of their reputation for quality and durability. They make a wide variety of power tools and woodworking equipment. Because of the popularity of this brand, parts are easy to find and therefore you can repair tools easily to keep your equipment working for a long time.

The Makita brand is recognized as one of the best. They were at the forefront of power tool manufacturing, both for professional and home use. They started manufacturing power tools in the 1950s and quickly built a reputation for producing high quality tools, a reputation that continues today with new additions being added to the line continually.

The steady popularity of Makita tools for home improvement projects and woodworking from the 1950s through today attests to their excellent quality. The complete line of both light and heavy duty tools is built to this high standard of quality.

Both corded and cordless models are available from Makita. Each model is made with a view to ease of use and accuracy for the user. Features such as angle attachments and LED lights make them easier to use. The cordless drills have 17 torque settings with variable settings, so that they can be used for any number of different kinds of jobs.

The woodworking tools from Makita are found in just about any professional or home workshop. Even master carpenters, cabinet makers and furniture craftsmen rely upon Makita woodworking tools such as planers, sanders, drills and saws to do a great job. The professional quality and reliable guarantees make them indispensable in this field.

Makita parts can be found in just about any service or repair shop, and can also be obtained on line. Makita tools come with a good warranty that will cover many repairs, so that you can bring your Makita to a repair shop and have it fixed under warranty. Make sure you go to a factory approved repair shop, or you may void your warranty. If the warranty has run out, this will not matter, and if you want to try to repair it yourself with parts you obtained on line, it is worth it.

Another advantage of Makita tools is the quality of the batteries. They range in capacity from 4 to 20 volts, depending on the tools,and Makita is constantly striving to improve the quality of the batteries and the charging systems. A reliable battery is essential to completing a project without interruption.

Makita installs two types of batteries in its tools, either the stick type, used on pistol grip drills, or the knob style, which are used in mid handle drills. A number of the drill sets have a fast charge system that charges the battery in fifteen minutes, or may come with two batteries that permit the user to charge one battery while the other battery is powering the tool.

the question is about a car battery

because it can damage it…not sure why but thats what ive been told.

I replaced a battery recently and noticed that the new battery is a lot smaller than the old one that I removed. Is this normal or did they give me the wrong battery?

When you buy a replacement battery, you are usually given at least three choices on the. All of the battery choices will be correct. You may have chosen the cheapest of the choices and you got a smaller battery.