Brief introduction to nickel-hydrogen battery, lithium battery and memory effect

The lithium battery

Advantages: no memory effect, light weight

Disadvantages: high cost, low current, not overcharged (compared to nickel-metal hydride)

The lithium battery has a lithium battery (non-rechargeable) and a secondary lithium battery (rechargeable), and the secondary lithium battery is divided into a Li-ion lithium ion battery and a Li-Polymer lithium polymer battery.

General digital camera usually use secondary Li-ion battery (rechargeable) compared with Ni MH battery -, Ni - MH light in weight and volume energy density ratio is 48% higher.Because of this, production and sales of lithium ion secondary battery are gradually more than more than Ni MH.The battery discharge little self, and no memory effect, charge and discharge frequency can reach more than 600 times, especially in recent years was developed by the Li - Polymer lithium polymer battery, in addition to a smaller, but also general battery cylinder or square shape without limit, the weight is lighter.

Lithium battery for not too full charge, if he is in danger of explosion, therefore need built-in control IC, prevent too full charge, but the cost is also relatively improve need more than one, lithium-ion batteries due to the specification is not unified, so after can organic kind of production can't buy batteries, but have to many manufacturers in order to overcome this problem, also can reduce inventory, unifying the lithium battery, like FUJIFILMNP with CASIONP - 30-60 is the same specifications, such as don't change the model charger, battery, etc will follow to change.Also have Taiwan manufacturers also introduced to support a variety of battery charger (EX. Intelligent LCD quick charge (universal voltage +) socket), replacing model as long as change the socket.

Lithium electricity and a more difficult problem, is the problem of environmental protection for the lithium battery contains many toxic substances, so all the lithium battery recycling, and not anywhere the discarded.

Nickel hydrogen battery Ni - MH (also known as the NiMH batteries)

Advantages: low prices, strong commonality, large current, environmental stability (compared with lithium)

Disadvantages: heavy weight, battery life is short, don't too full charge resistance (compared with lithium)

Nickel metal hydride battery design stems from a nickel cadmium battery, but on improving nickel cadmium battery memory effect, have great progress.The main change in use of cadmium in hydrogen storage alloy to replace the original negative, so typical of NiMH batteries, material innovation.And pollution caused by NiMH batteries, smaller than containing cadmium nickel cadmium battery will be many, therefore, the nickel cadmium battery has been gradually replaced by the NiMH batteries.

Lithium battery except minority has a lithium-ion battery can be used (NIKONEN EL1 and 2 cr5) most batteries alternative, this to want to go abroad for a long time, or a large number of users is very troublesome, nickel metal hydride batteries had no such problems, using digital cameras of NiMH batteries can often use alkaline battery replacement.

Recent digital cameras use more and more use NiMH batteries, battery manufacturers also bullish on the market, with high capacity of nickel metal hydride rechargeable batteries, make NiMH battery technology by leaps and bounds, the capacity is becoming more and more big, use the same time with lithium battery, the charger is becoming more and more advanced, charging time shortened significantly.

Lithium battery VS NiMH batteries

Many consumers are mobile phone industry education, geared think lithium battery is good, in fact very small NiMH battery memory now, but the consumer with the notions of NiMH batteries have been outdated and it is easy to die, in fact the lithium battery is than NiMH batteries for mobile phones, but in the digital camera, digital camera for electric traffic demand is quite large, with mobile phone power consumption also relatively big many, this part in the large current output NiMH batteries but slightly better, plus the NiMH batteries can use emergency general commercial alkaline batteries, lithium electricity besides NIKONEN - EL1 mostly without the welfare, so when choosing a digital camera are not geared toward the models of lithium-ion batteries.

FUJIFILMFinepixS602z digital cameras, for example, using four day Panasonic large current HHR200AAB nickel metal hydride rechargeable batteries and use SONY original M type rechargeable lithium batteries (NP - FM50) SONYDSC - S85 digital camera, you can use the same time is 190 minutes and 180 minutes, the charger level, one of our best selling NiMH batteries fast charger combinations, for example, about 4.5 hours, also with SONYDSC - S85 digital cameras charge in the machine the same time, combined with the advantage of price, use up to par with lithium battery, with high versatility, and with some places than lithium batteries but also can have one day.

What is a battery memory effect

Memory effect, because the use of the battery and make the cell contents to produce an effect of crystallization.Typically occur only in the nickel cadmium battery, probability of occurrence and NiMH batteries can be less, if use lithium batteries don't have to worry about this phenomenon.Battery memory effect occurs reason, usually due to the battery part repeatedly charge and discharge caused by incomplete < is electricity also useless over will recharge it >.This action will reduce temporary the capacity of the battery.

As for the battery memory effect how to avoid?First of all, you should set the battery without electricity then to charge;Or on the charger has discharge function, first discharge < isoelectric it finished, it will automatically recharge >.Don't will have electricity rechargeable batteries, to avoid the memory effect.

If the memory effect of the battery has been generated, how do you restore it to its original capacity? First, the battery must be completely discharged. The battery must be discharged for about 24 hours. After it is fully discharged, it can be fully charged. If it is cycled many times, the battery capacity can be restored unless the battery is damaged. However, to avoid the best way to do this, it is recommended that you buy a NiMH battery or a lithium battery.

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