The M03M-20/WO is a graphite battery plate produced for the Tamiya TT-01 Type-E platform. It replaces the stock plastic tray with a slim graphite surface to lower pack profile and help centralise mass within the Type-E battery bay.
Mounting is straightforward: the plate indexes into the existing battery bay and secures using the chassis' original fastener points. During installation confirm pack dimensions and connector routing so the battery sits flush and electrical terminals clear adjacent components.
From a setup and tuning perspective the graphite increases local stiffness and offers incremental weight reduction compared with bulkier plastic trays. These attributes assist with chassis balance and enable more consistent handling adjustments when repositioning or changing battery packs for different setups.