Digital camera batteries are specifically designed for the unique way digital cameras use energy - in big power bursts. Digital camera batteries have substantial power with a much longer life than alkaline AAs.
Batteries for portable consumer devices are principally made using technologies such as:
- Nickel Cadmium (NiCd)
- Nickel Metal Hydride (NiMH)
- Lithium Ion (Li-Ion)
Each type has unique characteristics manufactured for different uses.
NiCd and NiMH:
The main difference between the two is the fact that NiMH (the newer of the two technologies) offer higher energy densities than NiCds. NiMH are less prone to problems and require less maintenance and care. NiMH are also more environmentally friendly than their NiCd counterparts, since they do not contain heavy metals(which present serious landfill problems).
Li-Ion:
Li-Ion produce the same energy as NiMH but weigh approximately 35% less. This is a definite consideration in portable devices where the battery makes up a significant portion of the device’s weight.

Another reason rechargeable Li-Ions have become so popular is that they do not suffer from memory effect at all. Memory effect is voltage depression caused by improper recharging.
They are also better for the environment because they don’t contain toxic materials such as Cadmium or Mercury.
Rechargeable digital camera batteries are rated in […]

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