Products / Services

Customized Battery Chargers

Eaves Devices can provide a variety of custom charging units. These switch-mode charger units excel in size, weight and efficiency. They employ advanced pulse charging algorithms. When combined with our battery management products, a complete solution is provided offering individual cell based temperature compensated charging and electronic cell equalization.

The charger units incorporate proprietary controls designed and manufactured by Eaves Devices with off-the-shelf power supply modules. The controls are based on standard Eaves Devices sub-components that are highly configurable to meet the needs of the customer. This provides an optimum design that offers flexible controls combined with a proven, agency certified power section.

Eaves Devices can provide chargers for battery voltage of 24 to 800 V at powers up to 10kW. The chargers may also be used as stand-alone units for charging Lead-acid, Nickel-Metal Hydride (NiMH) and Nickel Cadmium (Ni-Cd) batteries.

The example charger below offers many custom features such as a splash proof design, internal shock mounting and a submersible cable interface.

  

CHG110 Battery Charging Unit

The diagram below illustrates a typical connection of a charger to a target battery system. The charger communicated via RS-422 to a communication distribution box known as the Remote Interface Box (RIX). The RIX then distributes the communication to the Monitor/Equalizer Boards (MEQs). Each output channel on the RIX can access 20 MEQs for a total of between 60 and 240 cells depending on the MEQ model. By communicating with the MEQs the charger can obtain voltage and temperature for the individual battery monoblocks or cells. The data allows the charger to regulate charge rate to maximize the life and performance of the battery. The control is based on individual cell data. This provides superior charge performance over traditional “bulk mode” charging. The system also has the ability to perform electronic equalization of the battery cells during charge to maximize energy delivery and cell life.