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GRAPCHARGERON-BOARD CHARGING SYSTEMS

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About UsWho we are, the factory behind the product and the process that governs it.TechnologyTopologies, thermal design and the control strategy behind every platform.CooperationOEM, ODM and distribution models, from sample to series supply.InsightsEngineering notes, application guides and company news.FAQLead time, MOQ, certification, warranty and customisation questions.ContactSend a pack voltage and a target power — we reply with a proposal.

Solutions

GC-OBC-700W700 W · 12–72 V · IP66 GC-OBC-850W850 W · 24–72 V · IP67 GC-OBC-2KW2 kW · 48–320 V · CAN GC-OBC-3.3KW3.3 kW · 48–540 V GC-OBC-6.6KW6.6 kW · 48–560 V · IP67 GC-DCD-2KW2–3 kW · step-up to 320 V GC-DCD-1.5KW1.5 kW · 48–800 V in GC-INT-6.6KW-1.5KW6.6 kW OBC + 1.5 kW DC-DC GC-BID-6.6KW-2KW6.6 kW bidirectional + 2 kW GC-INT-3.3KW-1KW-PDU3.3 kW + 1 kW + PDU

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Documentation and DownloadsSpecification sheets, drawings and test reports for every model.TroubleshootingFault codes, CAN behaviour and the checks to run before an RMA.Algorithms, Charge Profiles and BatteryCC-CV profiles, pre-charge behaviour and BMS handshakes.Tips, Tricks and General InformationSizing, derating, thermal margins and installation notes.

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800V

Technology

400 V vs 800 V Architectures: What It Changes for the On-Board Charger
By 2026-10-142026-10-16

800 V halves charging current for the same power, but the engineering cost sits in insulation coordination and in handling legacy 400 V infrastructure.

Read More 400 V vs 800 V Architectures: What It Changes for the On-Board Charger