What is cmA in battery pack

What does CMA mean on a battery?

Note : “CmA” During charging and discharging, CmA is a value indicating current and expressed as a multiple of nominal capacity. Substitute “C” with the battery’s nominal capacity when calculating. For example, for a l500mAh battery of 0.033CmA, this value is equal to 1/30 × 1500, or roughly 50mA. 2. Discharging

What is a cell module assembly (CMA)?

The cell groups are electrically joined in series to form the Cell Module Assembly (CMA) also known as a high voltage battery section. The pack contains 24 CMAs, each CMA is identical, although uniquely serialized, and contains a non-serviceable Hybrid/EV Battery Interface Control Module with wireless transmitter/receiver.

Do Panasonic Batteries generate heat if charged at 0.1 CMA?

Consult Panasonic for further details and specifications. If a large number of battery cells are used, or if batteries having a high nominal capacity are used, or if the heat dissipation of the battery pack is poor, the batteries may generate heat even when charged at 0.1 CmA.

What is a hybrid battery pack?

Cell, modules, and packs – Hybrid and electric vehicles have a high voltage battery pack that consists of individual modules and cells organized in series and parallel. A cell is the smallest, packaged form a battery can take and is generally on the order of one to six volts.

Why do batteries generate heat if charged at 0.1 CMA?

If a large number of battery cells are used, or if batteries having a high nominal capacity are used, or if the heat dissipation of the battery pack is poor, the batteries may generate heat even when charged at 0.1 CmA. In such cases, it is necessary to re-design the construction for better heat dissipation or to lower the charge current.

What does CCA mean on a car battery?

CCA is an indicator of the starting performance of a battery, especially for automotive applications. Constant Current Constant Voltage is a charging method that applies a constant current to the battery until it reaches a certain voltage, then switches to a constant voltage until the current drops to a certain level.