I replaced my old H5 battery with a H6 EverStart Value from Walmart. This battery is slightly larger and heavier but fits fine in the R53 trunk. The capacity and cca was 95 min and 615, which is between the H5 everstart Plus and Maxx but at a much lower price. My old H5 was DuraLast Gold and lasted 10 years and cost around $200. Hoping this battery lasts for at least 4. Ymmv.