Check the listing for details. Genuine Optimate SAE to TM Converter Cable Lead (SAE77 / 07). Condition: New, Made in China. Listed at 29.39 USD. Converter lead (SAE77) to connect OptiMates (with SAE Connector) to pre 2012 Optimate / AccuMate accessories (with TM type connectors). This allows your OptiMate charger (or accessory) to connect to the old style TM compatible range of accessories. Converter lead to connect your OptiMate with SAE-compatible connector to TM-accessories (as used with AccuMate and pre 2012 OptiMate models). Simply plug one end of the converter lead into a standard OptiMate TM lead (e.g. TM71) and you can then use a newer OptiMate, or other SAE accessory). In this way, you can connect an SAE compatible OptiMate to a bike or car equipped with a TM lead. Supplied complete with removable weatherproof rubber cap. NB - To convert an AccuMate, AccuMate PRO or OptiMate fitted with the white TM connector to use the SA.