Terms for Batteries -C-rate Definition:is a measure of the current rate at which a battery is discharged relative to its maximum capacity. A rate of nC corresponds to a full discharge in 1/n h.For a battery with a capacity of 100 Amp-hrs,1C equates to a discharge current of 100 Amps. Table 1:C-rate and service times when charging and Figure 2:Typical discharge curves of lead acid as a discharging batteries of 1Ah(1,000mAh) function of C-rate C-rate Time 2.1 5C 2.0 12 min 1.9 2C 30 min 1.8 1c 1h 1.7 0.5C or C/2 2h 5h0.2c 3h0.28c 1.6 0.2C or C/5 5h 1h(0.6C) 1.5 0.1CorC/10 10h 1.4 0.05CorC/20 20h Discharge Time (h) http://batteryuniversity.com/learn/article/what_is_the_c_rate 33 Terms for Batteries - C-rate • Definition: is a measure of the current rate at which a battery is discharged relative to its maximum capacity. • A rate of nC corresponds to a full discharge in 1/n h. For a battery with a capacity of 100 Amp-hrs, 1C equates to a discharge current of 100 Amps. Table 1: C-rate and service times when charging and discharging batteries of 1Ah (1,000mAh) Figure 2: Typical discharge curves of lead acid as a function of C-rate http://batteryuniversity.com/learn/article/what_is_the_c_rate