Replacement battery fits 7 XP Deus compatible models. Specifications: 700mAh, 3.7V, Li-Polymer. Compatible with: WS1, WS2, WS3, WS4, WS5, MI-4 Pinpointers and 1 more compatible models. Replaces: XP Deus CP-XPWS. XP Deus replacement battery designed for Equipment/Survey/Test Charger devices. A precise, secure fit you can rely on.