| Digital Camera rechargeable batteries take a | | | | better). |
| tremendous beating. Due to the nature of digital | | | | The Ni-Cad and Ni-MH are the most popular and |
| cameras, they require a good amount of voltage | | | | almost every major brand of battery has multiple |
| and also need the battery to maintain a good | | | | versions available. The latest technology is the |
| charge for long periods of inactivity. Many of the | | | | Ni-ZN which has superior storage capacity and a |
| current digital cameras have a flash and can take | | | | long shelf life. Most types of rechargeable |
| short movies. Both of these features are great | | | | batteries can be recharged many times but what |
| but can drain a battery twice as quick as normal | | | | they don't mention is that the amount of charge |
| photo shooting. | | | | drops off considerably after x amount of |
| Most people are familiar with the basic | | | | recharges. |
| rechargeable battery but the key to finding a | | | | And therein lies the real factor to consider. Let's |
| good one for your digital camera is to look at | | | | say when you get your new batteries you can |
| what material the battery is made out of, how | | | | take about 100 photos before they go south. As |
| quickly it will charge, and how long the charge will | | | | the number of recharges increase, the number of |
| last both in using and sitting on the shelf or in the | | | | photos decrease. Some may only last 25-30 |
| digital camera. | | | | recharges before they start loosing the ability to |
| One of the things I look at before I purchase any | | | | fully charge. Cost wise that's still a good savings |
| digital camera I buy is to make sure it has a | | | | since a normal AA alkaline battery costs about |
| common battery size. The reason is that no | | | | $1.15 and the comparable rechargeable is $2.50 to |
| matter how well you plan a photo shoot, things | | | | $5.00 depending on the mAh numbers. |
| happen and you may have to resort to good old | | | | The newer Ni-ZN cost about $5 each and claim to |
| alkaline batteries in a pinch. My first choice is a set | | | | take over 500 recharges before suffering any |
| of rechargeable batteries but you never know | | | | loss of charging capacity. But they also kick out |
| and it's a very good thing to be able find a fresh | | | | more voltage so as an example your flash |
| set of batteries. | | | | recycles in half the time of normal alkaline |
| There are a couple of important factors to | | | | batteries. And if you get 100 shots out of a set |
| consider on which rechargeable battery is the | | | | of alkaline, you should get at least 175 shots out |
| best. First is the amount of voltage, the next is | | | | of the Ni-ZN set of the same size. Plus the |
| how long the battery will perform, next comes | | | | storage life of the N-ZN is better than any of the |
| the time it takes to recharge, and the last is the | | | | other choices. |
| shelf life of the charge (how long the battery will | | | | Faster recycling of a flash can be a big deal since |
| hold the charge in storage). | | | | it's really a pain when shooting photos indoors and |
| Here's a list of typical rechargeable batteries and | | | | needing to wait up to 2 minutes for your flash to |
| their voltage output: | | | | be at full strength again. Or if you are shooting a |
| Ni-Cad rechargeable batteries - 1.2 volts | | | | series of short one minute videos, running out of |
| Ni-MH rechargeable batteries - 1.2 and 1.5 | | | | juice in the middle is not a good thing. |
| Ni-ZN rechargeable batteries - 1.6 volts | | | | So based on the above pricing and abilities, if you |
| Standard alkalines are 1.5 volts | | | | can recharge the highest price batteries up to 500 |
| There also is a rating that gives a reference to | | | | times, they are far cheaper to use in the long run. |
| the amount of stored energy capacity called | | | | And if they hold up anywhere near the claim of |
| mAh, which stands for milli Amp hour. These | | | | 500 charges, well, you can do the math. It's a no |
| ratings generally run from 750 mAh to 2100 mAh, | | | | brainer, the Ni-ZN offer both more voltage, better |
| the higher the number the greater the amount of | | | | shelf life, and more charges per battery. |
| energy storage capacity (higher the number the | | | | |