The differences between Ni-MH battery and Lithium battery
1, the weight
Each one-voltage battery cells of view are the nickel-metal hydride and nickel-cadmium 1.2V, while the lithium battery is in fact only 3.6 V, voltage of the lithium battery is 3 times the other two. And the weight of the same type of lithium battery and nickel-cadmium batteries is almost equal, while heavier than Ni-Ni-MH battery. We can see that the battery itself, the weight of each different, but the top of the lithium battery voltage of 3.6V, as in the case of the output voltage is equal to the number of combinations of a single cell may be reduced after the third is forming the battery weight and size reduction.
2, the memory effect
Nickel-metal hydride batteries and nickel-cadmium batteries have the same memory effect. Therefore, the direction of the regular discharge is necessary. This regular discharge management are at the fuzzy edge was treated, or even some knowledge of improper conduct discharge (discharge or use a number of times each time after discharge were the result of the company vary) This landfill management cumbersome use nickel-hydride VGP-BPS2B batteries, metal can not be avoided. In terms of lithium battery, because of no memory effect, it’s very practical and easy to use. It is completely without regard to the residual voltage is how much can be charged directly, charging time can be shortened by nature.
3, self-discharge rate
Nickel-cadmium batteries discharge 15 ~ 30% (month). Ni-MH battery for 25 ~ 35% (month), a rechargeable Lithium is 2 ~ 5% (month). Than nickel-metal hydride batteries self-discharge rate is highest, while the lithium satelite battery expertise with the other two types of rates of discharge of the battery compared to very low.
4 Price
Nickel-metal hydride batteries and lithium batteries can not be insensible to overload. Therefore, nickel-hydride batteries, metal mode constant current load control PICK CUT when the charging voltage is higher, to stop the load as the best means of support. The lithium batteries using a constant current, constant voltage mode, the best, if nickel cadmium battery charger DV-controlled manner, while pairs of nickel-metal hydride batteries and rechargeable lithium batteries.