The Cal-Van Tools Allstart OBD2 Memory Saver, No. 71, is an accessory that works with the Micro Boost and Boost Portable power units, as well as most other Lithium Jump Starters on the market. This is the only memory saver designed for use with lithium portable power units with fuse and back charge protection, according to the company. The OBD2 Memory Saver saves users from lugging around heavy lead acid jump starters. It also saves service time during battery disconnect or exchange, by removing the need to document and reprogram settings back into the various components and accessories.