As unmanned ground vehicles (UGVs) take on increasingly demanding roles across defence, security and other specialist applications, selecting the right batteries is critical.
One important consideration is the balance between high-power and high-energy batteries for unmanned ground vehicles. Although the terms are closely related, they describe different characteristics that can significantly affect a UGV’s capability.
At Lincad, we design and manufacture advanced battery systems for remotely operated and autonomous vehicles, including UGV batteries for demanding defence applications. Our experience allows us to develop solutions around the specific power, endurance, environmental and integration requirements of each platform.
What is a high-power UGV battery?
High-power batteries are designed to deliver large amounts of electrical power over relatively short periods. For an unmanned ground vehicle, this can be particularly important when the platform needs to accelerate quickly, negotiate steep gradients, operate heavy-duty actuators or power-hungry equipment.
Power density is therefore an important consideration. A battery must be capable of handling peak loads without compromising on reliability or safety.
This is especially relevant for military UGVs and explosive ordnance disposal applications, where robotic systems may need to operate tools, manipulators, cameras, communications equipment and propulsion systems simultaneously. We have supplied ruggedised lithium-ion battery systems for EOD robots, giving us practical experience of supporting these mission-critical requirements.
What is a high-energy battery?
High-energy batteries prioritise the amount of energy that can be stored within a given weight or volume. Greater energy density can provide a UGV with increased operating time between charges, helping to improve mission endurance and the range it can cover.
For autonomous ground vehicles undertaking surveillance, reconnaissance, inspection or extended operations, reducing the need to return for charging or battery replacement can be a major operational advantage.
However, simply specifying the highest possible battery capacity is not always the best solution. The size and weight of the battery can affect the vehicle’s mobility, payload capacity and the overall architecture.
Finding the right balance for UGV battery systems
Many applications require a combination of high power and high energy. The optimum balance depends on factors including vehicle mass, terrain, operating duration, propulsion requirements, payload, environmental conditions and auxiliary electrical loads.
At Lincad, we specialise in bespoke lithium-ion batteries and modular battery systems, allowing us to develop solutions around the individual requirements of the vehicle. Our expertise includes high-voltage and high-power systems, battery management, power management and compatible charging solutions.
For batteries for unmanned ground vehicles, there is rarely a one-size-fits-all approach. By considering power density, energy density, environmental performance and the complete operational profile, we can create UGV battery systems designed to deliver reliable power where it is needed most.
As unmanned and autonomous platforms continue to develop, we are supporting the electrification of ROV with rugged, high-performance battery technology engineered for even the most demanding applications on land, sea or in the air.