Shockbox SB-Conn-835 - Power Supply Custom Connector PS-835, PS-850 & PS-855

The ShockBox Power Supply Custom Connector is a purpose-built replacement connector assembly that mates directly with PS-835, PS-850, and PS-855 emergency power supplies for capacitance or discharge testing. It serves as a drop-in substitute for the original plug found on BFG-style capacitance test box harnesses, helping technicians refresh worn or damaged connectors without sourcing hard-to-find OEM parts. This connector provides a reliable interface between the power supply unit and test equipment, ensuring accurate, repeatable connections every time. Because it matches the correct pinout and connector style, it simplifies equipment setup in busy maintenance environments.

By providing a durable, aircraft-specific mating connector for PS-series power supplies, the SB-Conn-835 helps technicians quickly connect these units to ShockBox or compatible test equipment without having to improvise adapters. This reduces setup time and eliminates connection errors that can lead to incorrect test results or unnecessary retesting. Having a proper interface also makes it easier to build or repair test harnesses, keeping tools and procedures standardized across the maintenance team. As a result, overall battery servicing – including capacitance testing and discharge checks – becomes faster and more reliable.

Yes. The SB-Conn-835 helps extend the service life of existing BFG-style and ShockBox test hardware by replacing worn or damaged plugs that might otherwise compromise signal integrity or strain test leads. Frequent connection cycles in maintenance shops can wear down original connectors over time, leading to intermittent contact or failed connections that slow down testing. Installing a fresh SB-Conn-835 connector can restore a test harness’s reliability, delaying the need for more extensive harness or test box replacements. This can be especially important for high-volume repair stations.

Yes. While it’s optimized for aviation use with PS-835, PS-850, and PS-855 power supplies, the SB-Conn-835 can also be integrated into custom harnesses for test benches, ground support areas, or avionics labs where these connector styles are used. This flexibility makes it useful not only on dedicated ShockBox test equipment but also in broader testing environments where similar power supply interfaces are required. Integrating the SB-Conn-835 into custom setups ensures consistent mating quality and supports maintenance procedures that rely on precise electrical connections.

Aviation maintenance environments involve repeated connection and disconnection of power supplies during scheduled servicing and troubleshooting. A robust connector like the SB-Conn-835 reduces the risk of bent pins, intermittent contacts, or damaged cables that can occur with inferior or improvised connectors. Durable contacts and built-in strain relief help maintain electrical integrity throughout many cycles of use, improving reliability during testing. Ensuring solid connections also helps minimize false readings and supports accurate diagnostics.

Yes. The SB-Conn-835 is specifically designed to match the interface on PS-835, PS-850, and PS-855 emergency power supplies, which are widely used standby modules in aviation electrical systems and emergency lighting systems. These power supplies are often found in multiple aircraft types and commercial installations, making the connector a versatile asset for shops servicing broad fleets. By matching industry-recognized power supply interfaces, the SB-Conn-835 ensures compatibility with established test procedures and maintenance documentation.

Using a purpose-built connector like the SB-Conn-835 improves electrical contact quality and alignment, which reduces the variability that can occur with loose or improvised connections. Better contact quality ensures that the test equipment measures the power supply's actual performance rather than artifacts introduced by poor connections. This is especially important when performing critical capacitance or discharge tests, where precise electrical readings are required to determine component serviceability. Clean, dependable connections help technicians trust test outcomes.

While the SB-Conn-835 is optimized for aviation emergency power supplies, it can also be used wherever PS-835, PS-850, or PS-855-style connectors are required in test harness applications beyond aviation, such as lab bench testing or industrial battery diagnostics. Provided the electrical and mechanical requirements are compatible, integrating the custom connector in non-aviation test setups can support broader test program needs. However, technicians should always verify compatibility before adapting it to other systems.

In preventative maintenance programs, technicians often remove power supplies for routine capacitance and discharge testing to confirm ongoing health and performance. The SB-Conn-835 ensures that each connection to test equipment is secure and repeatable, supporting predictable results over time that can be tracked for trend analysis. This consistency helps better identify batteries that are beginning to degrade before they fail in service, improving fleet readiness. Standardizing connector use also helps maintenance teams avoid errors over multiple test cycles.

Many original equipment manufacturer (OEM) connectors for PS-series power supplies are difficult to source, have long lead times, or are more expensive due to limited availability. The SB-Conn-835 provides a drop-in replacement that matches the OEM interface while being built for durability and frequent reuse, often at a lower cost and with easier availability. This helps maintenance facilities maintain productivity without waiting for hard-to-find parts or resorting to suboptimal alternatives. It also supports continuity of test harness inventories in busy shops.