The biggest difference between NiMH and LiPo batteries is the chemical properties that enable the charging of the batteries. NiMH (Nickel-metal hybrid) uses nickel-based technology and LiPo (Lithium Polymer) batteries use a lithium-ion technology.
What the battery types have in common is that they both store a certain amount of energy depending on their capacity. Batteries can be manufactured with different voltages and capacities by installing battery cells in series or parallel inside the battery pack. One should be careful not to drop the batteries or damage the cases of the battery cells because it can cause a short circuit. Both battery types must be disposed of properly as hazardous waste.
The batteries differ in their properties and uses.
NiMH batteries are easier to use. They must be fully discharged before charging and must be charged full before storing. NiMH battery chargers are also very simple.
LiPo batteries don’t have to be fully discharged and they must be stored with a 50−70 % charge level. The charging must be done with a charger with balance charging. It is good to charge and store LiPo batteries in a LiPo safe bag.
Properties and remarks on NiMH batteries:
Properties and remarks on LiPo batteries:
The advantages of lithium batteries compared to NiMH batteries are undeniable.
The weight/power ratio in LiPo batteries is significantly better. LiPo batteries are noticeably lighter and they can store the same amount or more energy relative to their capacity than NiMH batteries. The power output of LiPo batteries is greater in quality and quantity. The power output of LiPo batteries is steady throughout the discharge, whereas the power output of NiMH batteries starts to decrease soon after charging because of higher discharge rate of the battery type.
Therefore with a LiPo battery with the same capacity as a NiMH battery a longer drive time and better performance can be achieved.