The brief introduction and memory effect of Ni-Nh battery and lithium battery

The lithium battery

Advantages: no memory effect, lighter in weight

Disadvantages: high cost, current is small, not too full charge resistance (compared with nickel metal hydride)

Lithium-ion batteries have a li-ion battery (rechargeable) and secondary li-ion battery (rechargeable), secondary lithium electricity divides Li - ion lithium ion batteries and 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 Ni-Mh 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 replaces the original negative, so typical of Ni-Mh batteries, material innovation. And pollution caused by Ni-Mh batteries, smaller than containing cadmium nickel cadmium battery will be many. Therefore, the nickel cadmium battery has been gradually replaced by the Ni-Mh 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 Ni-Mh batteries can often use alkaline battery replacement.

Recent digital cameras use more and more use Ni-Mh batteries, battery manufacturers also bullish on the market, with high capacity of nickel metal hydride rechargeable batteries, make Ni-Mh 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 Ni-Mh batteries

Many consumers are mobile phone industry education, geared think lithium battery is good, in fact very small Ni-Mh battery memory now, but the consumer with the notions of Ni-Mh batteries have been outdated and it is easy to die, in fact the lithium battery is than Ni-Mh 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 Ni-Mh batteries but slightly better, plus the Ni-Mh 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 Ni-Mh 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 Ni-Mh 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.

How do you avoid the battery memory effect? 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 battery memory effect has been produced, how do you restore the original capacity? First of all to completely discharge the battery, the battery must be discharge about 24 hours, after being completely discharge, any charge electricity, so cycle for many times, can restore the battery capacity, unless the battery has been damaged. However, to the best way to avoid this phenomenon, and it is recommended that you buy Ni-Mh batteries or lithium batteries.

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