How to calculate the charging time of Ni-MH batteries

The charging of Ni-MH batteries has always been the focus of attention. The relationship between the charging time and the charging current of the Ni-MH battery is the charging time divided by the charging current. Considering the loss during charging, the calculated charging time is multiplied by a constant of 1.2. Ni-MH battery charging There are many rechargeable battery models on the market now. It's just not. Take 5 batteries as an example, the capacity is 500MAH, 600MAH, 700MAH, 850MHA, 1200MAH, 1300MAH, etc. According to the above 10%C slow charging principle, we can understand that batteries of different capacities require different charging currents. Some universal chargers on the market are mainly designed for 500MAH and 600MAH batteries, and the charging current is between 60-70ma. If you want to charge a large-capacity battery, it will take longer. For the specific time, use a multimeter to measure the actual charging current, then divide the battery capacity by the charging current, and then multiply it by a factor of 1.2 to get the charging time. If the Ni-MH battery is charged more than 1000mah, you can try to use an ordinary charger in the fast charging range. Because this current is large, use a multimeter to measure the actual charging current. If the value is close to the charging current of the Ni-MH battery, charging 10% c is an error. of. In fact, many so-called Ni-MH battery chargers on the market are just ordinary chargers with higher charging currents. Suggestions: 1. When the charging current is less than 5% of the battery capacity, the charging time (hours) u003d battery capacity (mAH) × 1.6u0026pide; charging current (mA) 2. When the charging current is greater than 5% of the battery capacity, less than or equal to 10 %: Charging time (hours) u003d battery capacity (mAH) × 1.5u0026pide; charging current (mA) 3. When the charging current is greater than 10% of the battery capacity and less than or equal to 15%: Disclaimer: Some pictures of articles published on this site And the content comes from the Internet, if there is any infringement, please contact to delete the previous article: Brief analysis of the structure and working principle of lithium iron phosphate battery