Whats Ni-MH battery?
Ni-MH battery is the most environmentally friendly battery. The country that attaches importance to environment often uses this kind of battery because it is easy to recall and reuse. But Ni-MH battery has its downsides compared with Li-ion battery such as long charging time, heaviness, low capacity and memory effect. Although it suffers less from memory effect than Ni-Cd battery, it needs to be completely discharged before being charged, not only for laptop battery, but also for mobile phone battery. Lithium-ion battery also has its own imperfections like high cost and less discharge/charge cycles. A Lithium-ion battery provides 400-600 discharge/charge cycles, 800 cycles by special improvement. Based on the calculation that the battery is charged once per day, the best lithium battery can end up its life after around over 2 years. While a Ni-MH battery provides more than 700 discharge/charge cycles, high quality Ni-MH can even provides 1200 cycles. With this comparison, Ni-MH battery
