Archive

Posts Tagged ‘Battery Life’

Choosing an Electric Bike Battery

March 2nd, 2010

Electric bikes are becoming more popular as a green and healthy means of virtually sweat-free transport. Whilst accepted in Asia they are still article of a alcove bazaar in Europe and the US partly due to array weight and the aggravation of recharging times.

With worldwide emphasis on finding more eco-friendly methods of transport however, the spotlight is back on battery-powered methods of transport so technological advances are filtering their way through the to e-bike market.
How Electric Bikes Work

Motorized electric bicycles offer power-assisted cycling, the motor being powered by a rechargeable battery. The cyclist still has to do some work especially when starting off and also on hills although the strain of hard pedaling is taken off the rider by using the motor. Lazy riders can opt to let the motor do nearly all the work but that wears the motor out more quickly and runs the battery down faster.
Main Types of Electric Bike Batteries

Sealed Lead Acid (SLA). Cheap to produce, most Electric bikes in recent years have used SLAs. They are virtually maintenance-free and have a high energy density but they are very heavy (typically 30 lb.), cannot be answerable bound and will eventually die back the array beef are old.

Nickel-Metal-Hydride (NiMH). The advantage of NiMH batteries is their adeptness to fast allegation additional they are lighter and beneath baneful than SLAs whilst advancement aerial activity density. Performance, however, is reduced in cold weather and they need to be fully discharged at set intervals to maximize battery life.

Price and weight are two key factors to accede but it is important to analyze the performance, constancy and recharging times of anniversary array afore purchase.

Many manufacturers reduce battery weight by compromising power output so it is important to read the small print carefully. A cyclist wanting to use an e-bike for regular commuting may well need to invest in a light Lithium battery with a fast recharge option to avoid having to carry a spare as back-up. Occasional cyclists, on the other hand, may be happy with a cheaper SLA battery.

Tips and Articles , , , , , , , , , , , , , , , , , , , , ,

The Law PowerShot A710 IS

February 8th, 2010

An upgrade to the short-lived Directive PowerShot A700, the A710 IS received a propose facelift and a few attribute tweaks, the biggest and a large amount welcome of which is that the other example adds optical image stabilization. Moreover, upgrading from 6 mega pixel to 7 mega pixel provides for improved image worth. Is the A710 IS a worthy successor to the admired A700? 

 

Here are the head features:

 

* 7.1 Megapixels

* 6x optical zoom by means of optical Image Stabilizer (35-210mm equiv.)

* DIGIC II, iSAPS, 9-Point AiAF, FlexiZone AF/AE

* Digital Tele-Converter and Safety Zoom

* 2.5” LCD by wide viewing angle and genuine-image optical viewfinder

* 20 shooting modes

 

What else has changed?

 

Although a outdo looking camera, the A710 IS is added than mere behavior, through the count of the optical image stabilization set of laws, the on your own downside of which is the exterior decrease in battery life.  Flat, one may possibly experience an influential 360 shots from a good pair of rechargeable AA NiMH batteries.

 

More changes encompass….

 

* 60fps (QVGA) movie manner

* MyColors gear in playback comportment

* Playback overexposure alert

* 3:2 overlay on live feedback

* SDHC card stand

* Underwater scene mode (for use by new optional 40m underwater example)

* Slightly low-priced continuous shooting speed (1.7fps vs 2.0fps)

* 10g (0.36oz) heavier

 

Here are the full list of features and specifications:

 

* Sensor:  1/2.5” Level CCD, 7.1 million pixels

* Image Processor:  DIGIC II with iSAPS apparatus

* Image Sizes:  3072 x 2304, 3072 x 1728, 2592 x 1944, 2048 x 1536, 1600 x 1200, 640 x 480

* Movie Clips:  640 x 480 - 15/30 fps, up to 1 GB or 1 hour.  320 x 240 - 15/30/60 fsp, up to 1 GB or 1 hour (15/30 fps) or 1 minute (60 fps).  160 x 120 - 15 pfs, up to 3 minutes.  AVI action JPEG.

* Lens:  6x optical zoom, 35-210 mm equivalent, F2.8 - F4.8

* Optical Stabilization:  Yes (shift grade)

* Focus:  TTL auto focus, AF illuminator, 9-point AiAF or 1 point AF (any situate or prearranged center), 1 cm macro manner

* Metering:  Aim, Center-weighted standard, Make out (midpoint or allied to focusing frame)

* Shooting Conduct:  13 another modes, including Night Scene, Shutter Priority AE and Aperture Priority AE

* Shutter Speeds:  15 - 1/2000 second

* Apertures:  F2.8 - 8 (Wide) F4.8 - 8 (Tele)

* Exposure Compensation:  +/- 2EV in 1/3 stop increments

* Sensitivity:  Auto, Sky-scraping ISO Auto, ISO 80 - 800

* White Balance:  8 settings, including underwater

* Image parameters:  12 contemporary settings, including photo-stitch

* Continuous:  Continuous (1.7 fps) until memory is full

* Flash:  5 modes, including red-eye reduction.  Range: 55cm - 3.5m (wide) / 2.5 m (tele)

* Storage:  SD, SDHC, MMC compatible.  16 MB card included

* Viewfinder:  Authentic-image zoom, optical viewfinder

* LCD Display:  2.5” P-Si TFT, 115,000 pixels

* Connectivity:  USB 2.0 Hi-Speed, AV out

* Power:  2x AA batteries (alkaline included, but NiMH recommended), optional AC adapter

* Optional Accessories:  3 lenses, sky-scraping-sway flash, waterproof instance

* Dimensions:  97.5mm x 66.5mm x 41.2mm

 

More often than not, users of this camera assign good reviews, citing the advantages of using 2 batteries over 4, the convenience of using SD disks, date/time attribute, taken as a whole excellence and ease of use.  Numerous users locate that using the zoom element indoors lowers image worth and the limits of the 1 GB file (nearly 8 minutes of video) and the limited storage capacity of the provided 16MB card. 

 

The camera retails for about $300 US.

Visit here for other information:

spy camera, cctv security camera, network camera

 

 

 

 

 

Tips and Articles , , , , , , , , , , , , , , , , , , , , , ,

Electric Bicycle Motor Kits Electric Bikes

December 11th, 2009

I discovered electric bikes 10 years ago, but the bikes were clunky, and the battery life, and technology was sub-par. Motorized bike technology has finally come of age not any more. China the better producer, and user is bearing a activity 25 actor bike in 2009.I am so happy with the new technology that heading for my 5th as I convert a recumbent bike,I am now on my 4th electric bike conversion. I appetite to advance the chat about activity green, and what bigger way to do it, and accept fun at the aforementioned time.  Really once you start riding your motorized bike you will wonder how you ever did with out one.

Where Can You Go With An Electric Motorized Bicycle?

My family and I traveled to Washing DC this past summer, and took our e-bikes. I don’t know how many of you are familiar with the lay out, but it is more walking them most of us do in a year. We took the burghal bus from our auberge that loaded our bike after any problems. My family of four then spent the next 3 days exploring parts of Washington DC we would have never seen if we had not brought our bikes along. We covered more museums, and fun side trips like the Spy Museum (great fun spot) that I guarantee we would have not done unless we had our e-bikes. We also ate at fantastic restaurants that were recommended off the beaten path, and got there quickly and easily on our handy electric bikes. On the way back to Florida we stopped at Jekyll Island, and spent 2 days riding and enjoying miles, and miles of nature bike trails. Truthfully it was one of the best family vacations we have ever had. I tell you this story because Electric bicycles open doors of opportunities that you might not image yourself. Fun and practical, really you can’t go wrong, and you will love the convenience of jumping on, and just flying down the road with the wind in your hair. An electric bicycle is the sweetest, nonpolluting, quiet, and economic ride out there.

Which To Choose Electric Motor Conversion Kit
or A New Motorized Bike?

So, taking a look at electric bicycle kits, or a new motorized bikes you can see how easy it is to do your part to go green, and have a great deal of fun and enjoyment. It can be done in as little as 20 minutes to an hour depending on the bicycle kits that you choose if you choose to turn your favorite pedal bicycle into a great non-polluting commuting vehicle. Use your new automatic bike for activity to work, to the grocery store, or accepting about the neighborhood. If your neighbors are anything like mine, they’ll be out nosing around asking you a lot of questions, and trying to figure out how your new electric bike works.

Tips and Articles , , , , , , , , , , , , , , , , , , , , ,

Choosing an Electric Bike Battery

November 14th, 2009

As a green and healthy means of virtually sweat-free transport,E-bikes are becoming more popular. Whilst popular in Asia they are still something of a niche market in Europe and the US partly due to battery weight and the inconvenience of recharging times.

With worldwide emphasis on finding more eco-friendly methods of transport however, the spotlight is back on battery-powered methods of transport so technological advances are filtering their way through the to electric bicycle market.

Motorized bicycles offer power-assisted cycling, the motor being powered by a rechargeable battery. The cyclist still has to do some work especially when starting off and also on hills although the strain of hard pedaling is taken off the rider by using the motor. Lazy riders can opt to let the motor do nearly all the work but that wears the motor out more quickly and runs the battery down faster.

Main Types of Electric Bike Batteries

Sealed Lead Acid (SLA). Cheap to produce, most electric bikes in recent years have used SLAs. They are virtually maintenance-free and have a high energy density but they are very heavy (typically 30 lb.), will eventually die when the battery cells are old and cannot be charged quickly.

Nickel-Metal-Hydride (NiMH). The advantage of NiMH batteries is their ability to fast charge plus they are lighter and less toxic than SLAs whilst maintaining high energy density. Performance, however, is reduced in cold weather and they need to be fully discharged at set intervals to maximize battery life.

Before purchase,although price and weight are two key factors to consider,it is important to compare the performance, longevity and recharging times of each battery.

It is important to read the small print carefully by compromising power output,many manufacturers reduce battery weight. A cyclist wanting to use an electric bike for regular commuting may well need to invest in a light Lithium battery with a fast recharge option to avoid having to carry a spare as back-up. On the other hand,occasional cyclists may be happy with a cheaper SLA battery.

Tips and Articles , , , , , , , , , , , , , , , , , , , , ,

Getting the Right Accessories for Your GPS System

November 6th, 2009

The most recent GPS devices available in stores ordinarily provide enough bells and whistles to cater to many car owners who prefer their commutes to be straightforward and safe. Yet there might be instances when you reach the limits of your GPS device but still would prefer that your GPS device included more applications or more strong design for not-so-smooth situations. A great model to look into is the Garmin Nuvi 770 Portable GPS Navigator.

Don’t get rid of your GPS device and purchase another unit to meet your growing expectations too quickly. There are GPS accessories that might work with your device and might provide some additional functionality that can live up to your expectations. The prices you’ll pay for any of these GPS accessories are predicably far less than the price of your next GPS device. The following are several of the standard GPS accessories that are manufactured by each one of the major brands.

Chargers

Most of the more affordable devices do not last too long due to some of them posessing a battery life of only 2-3 hours. As a result you need to charge your GPS devices every now and then while on long drives. Although the majority of the devices normally are purchased with a GPS charger, there will probably be instances when the charger doesn’t work or could be lost. Do not settle for any universal chargers as they will likely wreck the battery. Always purchase chargers sold by the makers of your GPS device. These chargers should completely charge the correct device promptly, enabling you to use it for lengthy drives. A nice option to consider is the Garmin Nuvi 770 GPS Navigation system.

Carrying Cases

These GPS accessories will prove to be very low-cost and useful accessories that are designed to sheild any GPS device from harm from an assortment of elements. While several GPS devices are sturdy enough to withstand these elements normally, a carrying case gives them an extra protective shell, and the kinds with straps will be less complicated to hold on to. Travel cases are upgraded versions of carrying cases that remain compact, but designed for containing additional GPS accessories such as chargers.

Adhesive Discs

One or two models of GPS devices could be incredibly annoying to install on different styles of car windshields. After the frustration becomes insufferable, consider spending a bit of change on some adhesive disks. Fastening your GPS device needs to be as easy as fastening the disc to the windshield or any level surface and then attaching a GPS device onto the disc.

Car Kits

The kind and amount of items included which comprise each car kit will vary according to the maker, but normally, car kits are the more practical GPS accessories to have if you are unsure what accessories you actually ought to get or if you just prefer to be equipped for any new and unusual situations. Most of the car kits contain mounting kits, adhesive disks, data cables, and power adapters. If you have misplaced one or two accessories, a car kit can quickly refill your supply or offer more for backup purposes. Take a look at the Garmin Nuvi 770 Portable GPS Navigator for a nice unit.

A few models may require more accessories than others; so the most practical way to find accessories for your GPS device is to open up the product page for your device and find the accessories made for your device to avoid paying for any redundant purchases.

Tips and Articles , , , , , , , , , , , , , , , , , , , , , , , , ,