Understanding the voltage of RC batteries is crucial for their proper use and a key step towards advancing in the hobby. Below is a voltage chart for RC 7.2V 6-cell and 8.4V 7-cell NiMH batteries, along with pertinent information.
NiMH Battery Voltage Chart
| NiMH Battery | 1-cell | 6-cell | 7-cell |
| Minimum Voltage | 0.9V | 5.4V | 6.3V |
| Nominal Voltage | 1.2V | 7.2V | 8.4V |
| Fully Charged Voltage | 1.4V | 8.4V | 9.8V |
Minimum Voltage: This is the cut-off voltage we need to set to prevent over-discharging the NiMH battery.
Nominal Voltage: This is the average voltage of the NiMH battery under normal working conditions.
Fully Charged Voltage (Max. Voltage): This is the target voltage to set when charging the NiMH battery.
Proper Use of NiMH Batteries
Discharging: During use, monitor the battery temperature. If the battery gets too hot, it indicates high internal resistance, and you should stop using it and replace it with another battery.
Charging: If you have time, charging at 0.2C is the safest. For faster charging, you can set it to 1C.
Storage: Since NiMH batteries have a good self-discharge characteristic, you don’t need to pay special attention to the storage voltage. However, it’s best to store them at 30% to 50% charge for long-term storage.
Related Questions
Which is better: 7.2V NiMH or 7.4V LiPo?
You can replace a 7.2V NiMH with a 7.4V LiPo battery. In terms of discharge power, the 7.4V LiPo outperforms the 7.2V NiMH. However, the 7.2V NiMH has its own advantages. Click on “7.2V NiMH vs. 7.4V LiPo” to read a detailed comparison.
What are the mainstream brands of RC NiMH batteries?
Gens ace and Venom are known for their solid construction, performance, appropriate wire gauge, and durability. For budget options, consider ZEEE and Tenergy.
What are the main types of RC NiMH battery connectors?
The primary types are Tamiya connector, Deans connector, and XT60 connector. Click on “RC connectors chart” to learn more.
