1.2V Ni-MH battery

Risks of connecting 1.2V Ni-MH battery in series and in parallel

Most forklift 1.2V Ni-MH battery are connected in series, but some European and American models can connect two or more 1.2V Ni-MH battery in parallel to get more power. In addition to connecting 1.2V Ni-MH battery in parallel, another way is to use larger 1.2V Ni-MH battery. Due to the limitations of the 1.2V Ni-MH battery that can be selected, this method is not suitable for all situations. In addition, large 1.2V Ni-MH battery are not suitable for the form factor required for special 1.2V Ni-MH battery. Most chemical 1.2V Ni-MH battery can be used in parallel, and lithium-ion 1.2V Ni-MH battery are most suitable for parallel use. A battery pack composed of four 1.2V Ni-MH battery in parallel maintains a voltage of 1.2V, while the current and operating time are increased by four times. Forklift battery example Compared with 1.2V Ni-MH battery in series, high impedance or "open circuit" 1.2V Ni-MH battery in battery parallel circuits have less impact, but parallel battery packs will reduce load capacity and shorten operating time.

It's like an engine starting with only three cylinders. The damage caused by a short circuit is greater because, in the event of a short circuit, the faulty battery will quickly deplete the power in other 1.2V Ni-MH battery and cause a fire. In our lives, most battery packs for cars, forklifts, generators, mobile devices, etc. are still connected in series first. Portable devices that require high power are generally powered by battery packs with two or more 1.2V Ni-MH battery connected in series. If high-voltage 1.2V Ni-MH battery are used, the size of the conductors and switches can be made very small. Medium-priced industrial power tools are generally powered by 1.2V Ni-MH battery with a voltage of 12V to 19.2V; while advanced power tools use 1.2V Ni-MH battery with a voltage of 24V to 36V to obtain greater power. The automotive industry eventually increased the ignition battery voltage of the starter from 12V (actually 14V) to 36V or even 42V. These battery packs are composed of 18 lead-acid 1.2V Ni-MH battery connected in series. In early hybrid cars, the battery pack used for power supply had a voltage of 148V. The battery packs used in newer models have a voltage of up to 450V to 500V, most of which are nickel-based chemical 1.2V Ni-MH battery. A nickel metal hydride battery pack with a voltage of 480V is composed of 400 nickel metal hydride 1.2V Ni-MH battery connected in series. Some hybrid cars have also been tested with lead-acid 1.2V Ni-MH battery.

42V automotive 1.2V Ni-MH battery are expensive, and they produce more arcs on switches than 12V 1.2V Ni-MH battery. Another problem with using high-voltage battery packs is that you may encounter a situation where one of the 1.2V Ni-MH battery in the battery pack fails. It's like a chain. The more 1.2V Ni-MH battery are connected in series, the higher the chance of this happening. As long as there is a problem with one battery, its voltage will decrease. In the end, a "disconnected" battery may interrupt the flow of current. Replacing a "bad" battery is not easy because the new and old 1.2V Ni-MH battery do not match each other. Generally speaking, the capacity of a new battery is much higher than that of an old battery. When it comes to professional electrical knowledge, we generally require safety protection. Whether the 1.2V Ni-MH battery are connected in series or in parallel, there are certain risks when working, and they cannot be connected at will, otherwise the risks are very high.

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