A Comparative Analysis of Deep- Cycle and Regular Batteries for Resistive Loads

batteries also known as starting lighting ignition batteries have found applications in most common engines with little consideration for their application in deep cycle power system. This is due to the presence of deep cycle discharge batteries which have been designed to provide moderate flow of electrical current with higher depth of discharge and possibly long service life. This work is a comparative analysis of regular and deep cycle batteries using 40Ah of both batteries as a case study in order to ascertain their viability, benefits and drawbacks. The work involves the conduct of literature review on battery technologies including their charge and discharge characteristics as they relate to regular and deep cycle system application; carrying out a comparative analysis of the characteristics of regular and deep cycle batteries, as well as carrying out experimentation and analyzing the performance of regular and deep cycle (Flooded) batteries. Findings from the experiments revealed that the open circuit voltage for deep cycle battery (13.2V) was higher than that of a regular battery (12.79V). Also, a load test experiment carried out on both battery types revealed that the power output on the average when the regular battery as source was higher at low load of 3.6Ω than deep cycle battery with same load value. The output power at 3.6Ω was 59.114W for regular battery and 54.819W for deep cycle battery while at higher resistance (10.4Ω, 17.3Ω and 22.1Ω) the output power was lower (16.092W, 9.764W and 7.543W) for regular battery and (17.042W, 10.399W and 8.287W) for deep cycle battery. Also, the discharge rate of the deep cycle battery was 20hr while that of regular battery was 15.1hr on the average. However, it can be concluded from the experiments that the regular battery can also be applied in deep cycle power system even though its duration is low and discharge rate is high when compared with deep cycle battery