{"id":13941,"date":"2026-05-22T02:39:31","date_gmt":"2026-05-21T18:39:31","guid":{"rendered":"https:\/\/www.balderpower.com\/?post_type=product&p=13941"},"modified":"2026-05-22T21:56:34","modified_gmt":"2026-05-22T13:56:34","slug":"25v-8ah-ip68-waterproof-lithium-battery-rov-underwater-drone-auv-hot-swap-50m-60a-discharge","status":"publish","type":"product","link":"https:\/\/www.balderpower.com\/fr\/25v-8ah-ip68-waterproof-lithium-battery-rov-underwater-drone-auv-hot-swap-50m-60a-discharge\/","title":{"rendered":"25.2V 8Ah IP68 Waterproof Lithium Battery for ROV, Underwater Drones & AUVs \u2014 Underwater Hot-Swap, 50\u201360m Depth, 60A Discharge"},"content":{"rendered":"

The Balder Power 25.2V 8Ah lithium battery is engineered for ROV, AUV, and underwater drone platforms that operate at the intersection of three demanding requirements: sustained high-rate discharge for multi-thruster propulsion, pressure-rated waterproofing at 50\u201360 meter operational depth, and the ability to exchange the battery underwater without surfacing the vehicle.<\/p>\n

At 25.2V \/ 8Ah, this pack stores 201.6Wh in a 180 \u00d7 72 \u00d7 72 mm cylindrical form factor weighing 1.8 kg. The 72mm diameter cross-section is sized to fit the standard pressure tube housings used across the majority of small-format ROV and AUV platforms, allowing direct integration without custom mechanical adapters. The 60A continuous discharge rating (7.5C) provides the instantaneous current headroom that multi-thruster underwater vehicle systems require during full-thrust maneuvers, counter-current station-keeping, and rapid depth transitions \u2014 operating conditions where 1C or 2C rated batteries trigger BMS overcurrent protection at precisely the moments when maximum thruster authority is needed.<\/p>\n

The IP68 enclosure is pressure-rated to 50\u201360 meters depth, covering the full operational envelope of commercial inspection ROVs, harbor and coastal survey AUVs, and underwater drone systems used in infrastructure inspection, scientific sampling, and search operations. At this depth, hydrostatic pressure reaches approximately 6 bar \u2014 the enclosure sealing system is validated under sustained pressure loading across the repeated dive cycles that characterize professional fleet operations.<\/p>\n

The underwater hot-swap capability is the operational differentiator for fleet ROV and AUV operators: a depleted pack can be removed and a charged unit installed while the vehicle remains submerged, eliminating the surface retrieval, deck handling, and re-deployment time that conventional battery exchange requires. For survey campaigns where multiple vehicles operate continuously across long shifts, this capability directly increases the number of productive dive-hours per vehicle per day. NCM chemistry (800 cycles) is the standard configuration; LiFePO4 is available for operators requiring extended cycle life within the same form factor.<\/p>","protected":false},"excerpt":{"rendered":"