What rate should I discharge NiMH batteries?

What rate should I discharge NiMH batteries?

3C rate
The NiMh battery can usually discharge with a maximum 3C rate, but Grepow’s NiMh batteries can achieve the rate of a maximum of 15C.

How many amps does it take to discharge a NiMH battery?

NiMH batteries used to matched by discharging them at 20-30 amps. In general, higher is better with those.

What is the C rate if a 20 Ah battery is discharged with constant current of 10 A?

To obtain a reasonably good capacity reading, manufacturers commonly rate alkaline and lead acid batteries at a very low 0.05C, or a 20-hour discharge. Even at this slow discharge rate, lead acid seldom attains a 100 percent capacity as the batteries are overrated….BU-402: What Is C-rate?

C-rate Time
0.1C or C/10 10h
0.05C or C/20 20h

What does 20HR mean on a battery?

For deep cycle batteries the standard rating is 20 hours. So, if a battery has a rating of 100AH @ 20Hr rate, then that battery was discharged over 20 hours with a 5 amp load. Starting batteries, on the other hand, are typically rated at 10Hr rate, because they are used faster, so the 20Hr rate is not as important.

What is the maximum discharge rate of a battery?

battery can be discharged for pulses of up to 30 seconds. This limit is usually defined by the battery manufacturer in order to prevent excessive discharge rates that would damage the battery or reduce its capacity.

What is a discharge rate?

The discharge rate is defined as the steady current in amperes (A) that can be taken from a battery of defined capacity (Ah) over a defined period (h). Batteries for CEGB power stations are normally specified for a 10-hour rate.

Can I use 1.5 V batteries instead of 1.2 V?

Yes, most definitely. Using 1.2 V rechargeable batteries will have no effect on the use of the equipment. In fact an alkaline battery only benefits from 1.5 V voltage at the beginning of its discharge. Then, it drops constantly to well below 1.2 V.

How do you calculate discharge rate?

The flow rate of a stream is equal to the flow velocity (speed) multiplied by the cross-sectional area of the flow. The equation Q=AV (Q=discharge rate, A=area, V=velocity) is sometimes known as the discharge equation.

What is C10 discharge rate?

Charging and Discharging Rates C10 = Z (also written as C10 = xxx) means that the battery capacity is Z when the battery is discharged in 10 hours. When the discharging rate is halved (and the time it takes to discharge the battery is doubled to 20 hours), the battery capacity rises to Y.

What capacity is 20HR?

Lets say a SLA battery is rated at 20Ah capacity at 20HR. This basically means that the battery can discharge 1 amp per hour over a 20 hour period. A High Rate battery with the same amperage (20Ah) and with 10HR will be able to discharge 2 amps/hour over a 10 hour period.

What is a 20 hour rate?

The number of amps that can be withdrawn at a constant rate for 20 hours @ 80 F before voltage drops to 1.75 volts per cell (discharged).

What is the discharge rate of NiMH batteries?

In general, there are three types of discharge rate of NiMh batteries: LP (Low Power): Medium discharge rate: normally 5C discharge rate HP (High Power): High discharge rate: normally 10C discharge rate UP (Ultra Power): Normally 10C or 30A discharge rate, up to maximum 15C rate discharge

What is the discharge rate of a 100Ah battery?

This is known as the “hour” rate, for example 100Ahrs at 10 hours. If not specified, manufacturers commonly rate batteries at the 20-hour discharge rate or 0.05C.

What is the difference between a NiCd and a NiMH battery?

The Nickel-metal hydride (Ni-MH) battery is an improvement from nickel-cadmium (NiCd) battery as it replaces cadmium with a metal that can absorb hydrogen. Nickel-metal Hydride batteries can provide a higher capacity, have less obvious memory effects, and are more environmentally friendly.

What is the difference between grepow’s NIMH and NiMH batteries?

Nickel metal hydride (Ni-MH) batteries are generally not suitable for high-rate charging and discharging, but they are widely used in model toys and electric tools and are safer to use than lithium batteries. The NiMh battery can usually discharge with a maximum 3C rate, but Grepow’s NiMh batteries can achieve the rate of a maximum of 15C.