Probably seen better days BUT just reclean it and add a second strap to it and solder both straps and connection together so you have double the dimension, then clean terminals and especially where it fits onto the body. You wont believe the difference it makes regards recharging time for battery. did it to mine and got 7 years out of the battery. read it somewhere and decided to give it a go ,nothing ventured, nothing gained , and cant do any harm . gave the body a good scrub back made a bracket strong enough to hold both cables together the soldered it all together at both ends ,wrap the whole lot up in duct tape then rebolted it back on to the body ,it works extremely well, lots of charge there to give it a good kick first thing in the morning.