WG-BC1500M Bidirectional DC-DC Battery Charger Series

The WG-BC1500M bidirectional DC-DC battery charger series is the fully specified charger line from Shenzhen Wengao Electronic Co., Ltd. It comprises four models, WG-12BC1500M, WG-24BC1500M, WG-36BC1500M, and WG-48BC1500M, one for each of the battery voltages the series serves: 12 volts, 24 volts, 36 volts, and 48 volts. The published specification for the series states that it is waterproof, that it moves energy in both directions, that it communicates over RS485, that it supports charging while the engine is running, and that it serves lithium and AGM batteries. Those statements are reproduced here from the product's own published material, and they apply to this series only.

Bidirectional energy flow is the feature that gives the series its name, and it is worth explaining plainly. A conventional charger moves energy in one direction only, from the source to the battery. A bidirectional charger can also move energy back, from the battery to the load system. In a vehicle, that means the auxiliary battery can both receive charge while driving and supply power when the engine is off. In a vessel, it means the house battery can be charged from the engine system and can also feed onboard loads. In an energy storage installation, it means the battery can both absorb energy and return it. The two directions are not two separate products; they are two modes of the same unit.

Waterproof construction is the second feature, and it matters because of where these chargers work. A charger mounted in a boat, on a drone support vehicle, in an outdoor energy cabinet, or in a vehicle engine bay will meet rain, spray, washdown, and condensation. A charger that is not built for wet conditions will fail in exactly those places, and will fail in ways that are hard to diagnose, since water damage is intermittent before it is total. The published material describes this series as waterproof, and buyers mounting it in exposed positions should still confirm the mounting arrangement and the cable sealing during the inquiry, since the published statement describes the unit and not the finished installation.

RS485 communication is the third feature, and it is the one that separates a modern charger from a simple one. RS485 is a serial communications standard used across industrial and vehicle systems, and a charger that speaks it can report its state, accept commands, and be monitored from a central controller rather than checked by hand. For a fleet, a vessel, or an energy installation with many batteries, that monitoring is what turns a collection of chargers into a managed system. The published material states RS485 communication for this series, and the control protocol details are confirmed during the inquiry for the specific installation.

The battery coverage of the series is broad in a specific sense: four voltages, two chemistries. The four voltages, 12, 24, 36, and 48 volts, cover the auxiliary systems of vehicles, vessels, and small energy installations. The two chemistries, lithium and AGM, cover the two battery families a buyer is most likely to meet in those systems. AGM is the sealed lead-acid construction used where maintenance-free operation matters, and lithium is the chemistry used where energy density and cycle life matter. A charger that states both chemistries must manage two different charging profiles, and this series states that it does.

The stated application areas for the series are drones, marine use, industrial use, telecom, new energy vehicles, solar energy storage, unmanned aerial vehicles, and vehicle-mounted power systems. Those eight areas share a pattern: a battery that must be charged from a DC source while the host system is running, and a battery that must also be able to give energy back. A drone support vehicle charges flight batteries between sorties and powers ground equipment from the same bank. A boat charges its house bank while motoring and runs its electronics from it at anchor. A solar installation charges its storage bank from the array bus and returns energy to the load at night.

Four models are listed for the series, one per battery voltage. A buyer choosing between them should match the model to the battery bank voltage, not to the source voltage, since the charger must satisfy the battery it charges. The model designations make that matching straightforward: WG-12BC1500M for a 12 volt bank, WG-24BC1500M for 24 volts, WG-36BC1500M for 36 volts, and WG-48BC1500M for 48 volts. This site does not state a power rating for this series, because the published material gives two different power figures for it and neither is reproduced here; the rating is confirmed during the inquiry.

Before ordering, confirm quantity, price and delivery time, and request certificates if they are needed for import or project compliance, since certificates are available upon request. The charging current, dimensions, and control protocol details for the specific model are likewise confirmed during the inquiry, together with the battery chemistry and the application, so the answer matches the system being built rather than a generic category description.