AB910E-CASP - Christie CASP/2500H Aircraft Battery Charger/Analyzer

The CASP/2500H reconditions NiCd (nickel-cadmium) batteries and charges and analyzes all rechargeable battery types used in aviation and aerospace applications. The unit automatically recognizes the most common battery makes and configurations, and can be programmed to accept other battery types – including newly developed chemistries – as they enter service. This programmability makes the CASP/2500H a future-ready investment for operations managing evolving battery technologies across mixed fleets.

The CASP/2500H retains all of the core battery support functions of the CASP/2000 while adding expanded battery processing capabilities and updated internal firmware that reflects the latest in Christie's battery management technology.

The user interface has been significantly improved – new, clearly labeled front-panel function keys, a continuous scrolling display showing the real-time status of each channel, and a built-in help function make the CASP/2500H considerably more intuitive to operate than its predecessor, reducing the learning curve for new technicians.

These interface improvements are particularly valuable in high-throughput maintenance environments where multiple technicians may be using the same unit. Christie designed the CASP/2500H as a direct replacement for the CASP/2000, meaning existing CASP users can transition to the newer platform without retraining from scratch.

Nickel-cadmium (NiCd) batteries are widely used in aircraft applications due to their reliability, wide temperature range, and high discharge rates – but they are susceptible to a phenomenon called the memory effect, in which repeated shallow discharge cycles cause crystalline formation on the battery's electrodes, gradually reducing its effective capacity.

The CASP/2500H's recondition function performs a controlled deep discharge designed to break down this crystalline buildup, helping restore the battery closer to its original capacity. Regular reconditioning as part of a preventative maintenance schedule extends battery service life and reduces the risk of in-service capacity failures that might not be apparent from a standard charge check. For operations subject to FAA or military maintenance requirements, documented reconditioning cycles also contribute to a complete and defensible battery maintenance record.

Yes! The CASP/2500H features six independent output channels, allowing up to six batteries to be processed simultaneously. Each channel operates autonomously, meaning batteries in different states of charge or service can run concurrently without interfering with one another. For military flight lines, airline maintenance operations, and high-throughput MRO facilities, this multi-channel capability significantly reduces the time required to cycle through a full battery inventory.

Auto Life Cycle is one of the CASP/2500H's four automatic battery servicing modes, designed to put a battery through a series of controlled charge and discharge cycles to evaluate its actual capacity and overall service condition. By cycling the battery repeatedly under controlled parameters, the function helps technicians determine whether a battery is performing within acceptable service limits or approaching the end of its useful life – providing documented, objective data to support airworthiness decisions. This is particularly valuable for NiCd aircraft batteries, which can develop memory effect over time and benefit from systematic capacity verification.

The Maintenance Charge function applies a low-level charge to keep a battery at full capacity during periods of storage or standby, counteracting natural self-discharge without the risk of overcharging. It is the appropriate mode for batteries held in reserve inventory that need to remain ready for service without being actively cycled. Including Maintenance Charge in a battery management routine extends storage life and ensures reserve batteries are flight-ready when called upon.

The TD-750 Computer Interface Software, included with the CASP/2500H, enables direct communication between the unit and a PC for data management and battery servicing record-keeping. It works in conjunction with the CASP's built-in RS-232 serial output port to transfer detailed battery servicing reports to a connected computer, eliminating the need for a dedicated printer in documentation-focused environments. For operations that prefer to capture and archive data electronically, the TD-750 provides a streamlined alternative to the included serial printer kit.

The optional CASP Printer Emulator Program (AB910E) is a PC-based software application that automatically captures CASP battery servicing reports via a connected computer, functioning as a virtual replacement for a physical printer. Unlike the TD-750, which provides a direct unit-to-PC interface for a single CASP, the AB910E supports connecting up to eight CASP units to a single PC simultaneously, making it particularly well-suited for large maintenance facilities running multiple units in parallel. This centralized data capture capability simplifies report management and record-keeping across high-volume battery servicing operations.

Yes. The CASP/2500H features an auto-selecting input voltage range of 90V to 135V AC or 180V to 265V AC, making it compatible with virtually all global power standards without requiring a separate step-up or step-down transformer. This dual-range capability is especially valuable for military and aerospace operators with international deployments, as well as for MRO facilities that service aircraft from multiple regions. The unit also accepts input frequencies from 47 to 63 Hz, covering the full range of power grid standards encountered worldwide.

The CASP/2500H is built for demanding operational environments, with a rated operating temperature range of -40°F to 167°F (-40°C to 75°C), a shock tolerance of 30g, and a vibration rating of 2g. It operates at altitudes up to 40,000 feet and handles relative humidity up to 95% non-condensing, making it suitable for ramp environments, forward operating locations, and other settings where conditions can be far from ideal. The unit's aluminum case and convection-cooled design contribute to its durability without adding significant weight – the CASP/2500H weighs just 10 lbs (4.6 kg).

The CASP/2500H generates detailed battery servicing reports via its built-in RS-232 serial output port, providing a printed or digitally captured record of each battery's charge, discharge, capacity, and condition data at the conclusion of every servicing event. These reports serve as the primary documentation artifact for battery maintenance records, supporting compliance with FAA maintenance requirements, military battery management programs, and manufacturer-specified servicing intervals.

When used with the TD-750 software or AB910E Printer Emulator, reports can be stored electronically and organized by battery serial number, aircraft tail number, or service date, creating a searchable maintenance history that simplifies audit preparation and lifecycle tracking. For operations where battery maintenance records are subject to regulatory review, the CASP/2500H's built-in reporting capability removes the manual recordkeeping burden from technicians and reduces the risk of documentation errors.

The CASP/2500H should be calibrated and serviced every 12 months to ensure continued reliable operation and measurement accuracy. This interval applies to all CASP models and reflects an industry-wide shift toward more rigorous calibration standards to reduce the probability of false acceptance in battery servicing results. Staying current on calibration is essential to maintaining the integrity of battery servicing records and ensuring the unit is performing within its specified parameters.

Calibration and repair of the CASP/2500H must be performed exclusively by a factory-authorized Christie CASP calibration and repair center or the factory itself – unauthorized calibration or repair directly voids the factory warranty. Christie's proprietary calibration process uses specialized software, test fixtures, firmware, and circuit modifications that require dedicated training and are not distributed to non-authorized facilities. Factory-authorized Christie CASP calibration and repair centers are located worldwide, including facilities in the USA, Australia, England, France, Italy, and Israel, providing global service coverage for CASP operators.