Ark Corporation
XO750 Black Edition Trailer Jack
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Built to be tough, Designed to be versatile
A poor Trailer Jack can often become the bane of a campers and boaties life; bending, breaking or rarely going in the direction you need them to. Leaders in Trailer Jack design and manufacture, Ark have produced one of the toughest Trailer Jacks to ever hit the market, the XO Series Trailer Jack
Redesigned from the ground up, the model was made to be stronger and built to last.
Review of the XO Trailer Jack by The Jeep Expeditions Group TM
BOX CONTAINS
• XO750 Black Edition Trailer Jack
• Removable handle.
FEATURES
• Magnetic removable side-winding handle
• Heavy duty square body & swivel clamp
• 4 height positions (Max height 28")
• Variable yoke lock
• Easy-pivot trailing yoke design
• Dual wheel with sealed bearings and Off-road tread
• Highly rust resistent (salt spray tested for 600hrs).
TECHNICAL SPECIFICATIONS
• Static Load Rating: 1650lbs
Patent protected
Key Features
Key Features
- 50A DC-DC vehicle charging with automatic buck-boost regulation across a 9–46V input range
- Adaptive MPPT solar charging up to 46V input, with ARK's self-tuning algorithm for low-light and shading conditions
- AC-DC charging (23A) via an ARK-approved 24V adapter, sharing the solar input port
- Vehicle Sense Technology (VST) — detects engine operation automatically, no ignition wire required
- 500A integrated busbar and smart shunt — battery monitoring and load distribution built into the negative/positive path, no external shunt or busbar needed
- 3 integrated MEGA fuse slots for protected load outputs, field-serviceable
- Lithium recovery mode — safely wakes batteries shut down by BMS protection
- Onboard display + built-in Wi-Fi — live monitoring from the unit or from any phone/tablet/laptop, no app required
- 4-step thermal derating and multi-sensor protection for sustained high-current operation in hot environments
- Supports Lithium, AGM, GEL, Flooded, and Calcium battery chemistries, 60–600Ah
Specifications
Specifications
Battery system: 12V nominal
Max charge current: 50A
Max input current: 57A
Vehicle input: Up to 32V DC
Solar (MPPT) input: Up to 46V DC
AC-DC input: 24V DC, 23A max
Busbar rating: 500A
Fuse outputs: 3x MEGA fuse slots
Charging voltage range: 13.2V–15.8V (configurable)
Battery capacity range: 60Ah–600Ah, user-configurable
Monitoring: Onboard display + built-in Wi-Fi captive portal
Compliance: FCC Part 15 Class A (US), ICES-003 (Canada), AS/NZS CISPR 11 (Australia)
Intended Use
Intended Use
The DMC50 is designed for 12V auxiliary battery systems in automotive, caravan, marine, and off-grid applications, for use in the United States, Australia, and Canada. It is not intended for grid-connected or utility-interactive systems, life-support or safety-critical applications, or battery systems above 12V nominal. Installation should be performed by a qualified installer or a technically competent user familiar with high-current DC systems.
One enclosure, not five boxes
Traditional 12V setups wire together a separate MPPT charger, AC-DC charger, DC-DC charger, busbar, smart shunt, comms network and display. The DMC50 combines all of this into one unit with a single set of input and output connections.
What's Inside
Every function below is part of the same enclosure and the same firmware.
50A DC-DC Charging
Buck-boost charging from a vehicle alternator, 9–46V input range, automatic buck/boost switching.
Adaptive MPPT Solar
Self-tuning solar charging up to 46V input, designed to hold output steady in low light and partial shade.
AC-DC Charging
23A charging from an ARK-approved 24V adaptor, sharing the solar input port.
Vehicle Sense Technology
Detects engine operation automatically — no ignition wire to run.
500A Busbar & Smart Shunt
Battery negative routes through an integrated shunt; no external monitor or busbar block needed.
3x MEGA Fuse Slots
Field-serviceable fuse protection for load circuits, built into the main power block.
Lithium Recovery Mode
Limited, time-boxed recovery charge (7A, 2 min max) for batteries shut down by BMS protection.
Onboard Display + Wi-Fi
Local display plus a built-in Wi-Fi captive portal — monitor from a phone, tablet or laptop, no app required.
4-Step Thermal Derating
Output steps down automatically above 80°C and recovers once temperature drops, instead of cutting out.