The amp setting of a charger for a 7.2V NiMH battery will vary depending on the manufacturer's recommendations, the capacity of the battery, and the desired charge rate. To determine the appropriate amp setting, you should refer to the manufacturer's documentation or the specifications included with your charger. Generally, the amp setting should be around 10% of the battery's capacity. For example, for a 7.2V NiMH battery with a capacity of 2000mAh (2Ah), the amp setting should be around 0.2A.
It is important to avoid charging a NiMH battery at too high of a current, as this can damage the cells. The recommended charge rate for NiMH batteries is typically around 1C, meaning that the charge rate should not exceed the battery's capacity. In the case of a 2Ah battery, the maximum charge rate would be 2A. Charging at a lower rate, such as 0.5C, can help to prolong the life of the battery.
