A conventional
battery is discarded when its charge runs out or remains at an insufficient
(weak) power level. With a rechargeable battery, it is enough to use a
suitable device for the energy charge to be restored. With
that, the battery can be used numerous times again.
It is important to
remember that a conventional cell (or battery) cannot be recharged. Although
there are devices for that, the chemical composition of this type of battery is
not ready for recharging. As a consequence, leaks (and
poisonings), device malfunction, and even explosions can occur! bolts.answerhop
Rechargeable
batteries are capable of being recharged, although not infinitely many times. The
standard validity of these batteries depends on their type and their proper
use.
Types of rechargeable batteries
The
market basically offers two types of rechargeable batteries: NiCd and NiMH:
- NiCd batteries (Nickel Cadmium)
Also called Nickel Cadmium, this
is the type of rechargeable battery !$ that came out first. NiCd batteries
are usually cheaper. However, they have a shorter useful life, in addition to having a lower
load capacity.
Nickel Cadmium
batteries can suffer from a problem called the "memory effect." When that
happens, the battery stops being fully
charged due to its chemical composition and gives a signal that the charge is
complete. To understand better, imagine that a
battery has a memory effect that reaches 10% of its capacity. This
indicates that its charge will be 90%, as the battery will indicate that the
remaining 10% is already charged. tc-bolts.dyifo
The memory effect occurs when
charge residues in the battery induce the formation of small blocks of cadmium. The best way to avoid this problem not to recharge when the
battery is partially discharged. It is better to
wait until the battery runs out and can no longer be used in any equipment.
NiCd batteries are increasingly
in disuse because, in addition to the memory effect, their lower capacity, and
the shorter useful life, this type of battery
is highly polluting since cadmium is a highly toxic and harmful
chemical element for the environment. techqueer
- NiMH (Nickel-Metal Hydride)
batteries
Also called Nickel Metal
Hydrate, NiMH batteries are
the most widely used type today, as they offer greater capacity, longer life,
and support more recharges when compared to NiCd (depending on
the manufacturer, this may not be true). In addition, they are less polluting
since they do not use heavy materials, such as cadmium. Another advantage
of this type is the non-existence of the memory effect. construction-bolts.tockhop
- Li-ion (lithium
ion) batteries
Lithium ion
(Li-ion) batteries are lighter, have a high energy capacity, and high
resistance to discharge. They do not have the problem of memory effect and
support a large number of load cycles.
Its main problems
lie in its rapid degradation and its sensitivity to high temperatures, which
can result in its destruction by ignition or even explosion. bacobolts.yictic
