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Comparison Videx VCH-UT201 vs Videx VCH-UT200

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Videx VCH-UT201
Videx VCH-UT200
Videx VCH-UT201Videx VCH-UT200
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Main
USB-C port to power the device.
Batteries charging
Charging slots2 шт2 шт
Supported types
Ni-Cd
Ni-Mh
Li-Ion
LiFePO4
IMR
Ni-Cd
Ni-Mh
Li-Ion
 
IMR
Size
AAAA
AAA
AA
C
D
10440
14500
16340 (CR123)
 
17500
17650
17670
18490
18500
18650
20700
21700
22650
26500
26650
36250
 
AAA
AA
C
 
10440
14500
16340 (CR123)
17335
17500
 
17670
18490
 
18650
 
 
22650
26500
26650
 
Specs
Operation indicatordisplaydisplay
Independent charge channels2 шт2 шт
Min. charge current1000 mA250 mA
Max. charge current2000 mA1000 mA
Charge current (all channels)1000 mA1000 mA
Number of settings2 pcs4 pcs
Features
Capacity measurement
Overcharge protection
Preliminary discharge
Capacity recovery
Residual capacity check
Polarity test
Fault detection
USB output charging gadgets
Overheat protection
Short circuit protection
General
In box
 
cigarette lighter adapter 12V
Movable negative contact
USB charging powerUSB C
Mains plug on cable
Dimensions (HxWxD)146x75x40 mm146x75x40 mm
Weight100 g105 g
Added to E-Catalogjune 2021december 2019

Supported types

The battery technology that the charger is compatible with. Modern batteries can be manufactured using different technologies (Ni-Cd, Ni-Mh, Li-Ion, LiFePO4, IMR), each has its own characteristics and requirements for the charging procedure; therefore, for a specific battery, it is worth choosing a charger for which compatibility with the corresponding technology is directly stated.

— Ni-Cd. Nickel-cadmium batteries are one of the oldest types of rechargeable cells. Nevertheless, they are still used quite widely today — in particular, Ni-Cd batteries are considered optimal for devices with relatively high current consumption and increased reliability requirements. Such batteries are resistant to low temperatures, easy to store, reliable and safe. One of the main disadvantages of this technology is the “memory effect”: the battery capacity decreases after it is put on charge without being completely discharged. However, this point is more related to the features of charge controllers, and not to the technology itself, and the use of advanced controllers can be reduced to almost zero. But from the unambiguous shortcomings, one can mention the “non-environmental friendliness” of both the batteries themselves and their production.

— Ni-Mh. Nickel metal hydride cells were created in an...attempt to improve on the nickel cadmium cells described above. The creators managed to achieve a higher capacity (with the same battery size), in addition, Ni-Mh cells are environmentally friendly and completely devoid of the memory effect even when using the simplest charge controllers. The disadvantages of this option, compared with Ni-Cd, are relatively low resistance to frost, shorter service life and more difficult storage conditions, especially for long periods.

— Ni-Zn. A technology that is the same age as Ni-Cd and also survived to this day. Nickel-zinc cells are notable for their higher capacity than other "nickel" batteries, as well as higher voltage, which, moreover, remains at the operating level almost until the charge is exhausted. The latter is especially convenient for digital cameras — this technique is quite demanding on voltage. However, for a number of reasons, Ni-Zn technology has not gained much popularity. The main of these reasons is the short service life (about 300 – 400 charge-discharge cycles).

— Li-Ion. A type of battery, widely known primarily for portable electronics like smartphones or players, but has recently been successfully used in other types of equipment. Lithium-ion batteries combine good capacity with compactness, charge fairly quickly and are devoid of the "memory effect". Their main disadvantages are high cost, poor suitability for work at low temperatures and some probability of fire during overloads and failures.

— LiFePO4. A variety of the Li-Ion batteries described above, the so-called "lithium iron phosphate". The advantages of such cells over classical lithium-ion ones are, first of all, a stable discharge voltage (until the energy is exhausted), high peak power, long service life, resistance to low temperatures, stability and safety. In addition, due to the use of iron instead of cobalt, such batteries are also safer to manufacture and easier to dispose of. At the same time, they are noticeably inferior to lithium-ion in terms of capacity.

— IMR. This abbreviation is used for lithium-ion-manganese-oxide batteries, another variation on lithium-ion technology; the designation LiMn also occurs. Improvements introduced in this version include thermal stability (reduced risk of ignition in case of failure), durability and low self-discharge rates (the latter simplifies long-term storage). At the same time, many IMR batteries are claimed to be compatible with standard "chargers" for lithium-ion cells, but it is best to use specialized devices (in particular, due to low internal resistance and increased risk of overdischarging).

Size

The battery sizes that the charger is compatible with. In this case, the adapters supplied in the kit (see below) are not taken into account in this paragraph, we are talking only about the memory as such.

The standard dimensions describes the shape, dimensions, connector design and operating voltage of the battery; thus, it is one of the most important parameters for determining compatibility with a particular charger.

The most popular sizes for which modern “chargers” are made can be divided into 1.5-volt (marked in Latin letters AA, AAA, C, D) and 3.7-volt (have digital markings 14500, 17500, 18650, 22650, 26650, etc. .P.). More about them:

— AAAA. The smallest version of the "finger" dimensions: batteries of the same cylindrical shape as the well-known AA and AAA, but with a size of only about 8 mm and a length of about 43 mm. Similar in application to AAA, but very poorly distributed.

— AAA. Size, colloquially known as "mini finger" or "little finger batteries": cylindrical batteries with a size of 10.5 mm and a length of 44.5 mm. They are mainly used in miniature devices for which there are not enough “tablet” bat...teries, and larger elements are too bulky.

— AA. Classic "finger" batteries with a size of 14 mm and a length of 50 mm, one of the most popular modern standard sizes (if not the most popular). They are used in a wide variety of types and price categories of devices, including even external battery packs for SLR cameras.

- C. Batteries in the form of a characteristic "barrel". They are similar in height to finger-type AAs, but almost twice as thick - 50 mm and 26 mm, respectively - due to which they have a higher capacity.

- D. The largest dimensions of consumer grade 1.5V batteries, 34mm in size and 61mm in length. It is mainly used in high-power flashlights and devices with high energy consumption.

3.7-V batteries are indicated by a five-digit number. In it, the first two digits indicate the size (in millimeters), the remaining three indicate the length (in tenths of a millimeter). For example, the popular dimensions 18650 corresponds to a battery with a size of 18 mm and a length of 65.0 mm. It is worth noting here that there are 3.7-volt cells that are the same dimensions as the 1.5-volt ones described above (for example, the 14500 dimensions is similar to AA finger-type), but both types are not interchangeable due to the difference in voltage.

A separate category is 9-volt R22 batteries, also known as PP3: these are rectangular elements in which a pair of contacts is located on one of the ends.

Min. charge current

The smallest current that the device can provide in charge mode. If this parameter is specified in the specifications, this means that this model has the ability to adjust the charge current (otherwise, only the maximum current is indicated).

Charging current is one of the most important parameters for any charger: see “Maximum charge current. And the general range of current adjustment depends on this indicator: the lower the minimum value (with the same maximum) — the more extensive the possibilities for setting up the "charger" for the specific specifics of work.

Max. charge current

The highest current that the device can provide when charging the battery (or the nominal value of the charging current, if it is not adjustable).

Charging current is one of the most important parameters for any charger: it determines the speed of the process and compatibility with certain batteries. In general, the higher the current, the faster the process, the less time it takes to charge. At the same time, some batteries may have recommendations for the optimal current strength and restrictions on its maximum values. Therefore, mindlessly chasing a powerful charger is not worth it: at first it's ok to clarify how justified such power will be.

Note that in multi-channel devices (see "Independent channels"), the maximum current strength can be achieved when only part of the channels are operating. The indicators provided when all channels are operating simultaneously are indicated separately for such models (see "Charge current (all channels)").

Number of settings

The number of separate charge current settings (see above) provided in the design of the charger. For example, a device with 4 settings may provide options for 200, 400, 800 and 1000 mAh. In general, the larger this number, the more accurately you can choose the charging current for a particular situation.

Preliminary discharge

Pre-discharge is useful for batteries that are prone to memory effect - they need to be charged only after the charge is completely depleted. In accordance with the name, a charger with this function is capable, if necessary, of discharging the installed battery “to zero” before starting charging. At the same time, some models are able to automatically detect the presence of residual energy and turn on a preliminary discharge, in others it must be turned on manually.

Residual capacity check

A procedure to determine the actual capacity of the installed battery. When measuring capacity, the charger charges and discharges the battery (in some models - several times, for greater accuracy), measuring the actual amount of stored and released energy. Checking the remaining capacity takes much longer than the “capacity measurement” item described above, but it is much more accurate and can be used not only to determine the characteristics of the battery, but also to diagnose its condition and degree of wear.

USB output charging gadgets

The ability to use the charger to charge portable electronics - smartphones, tablets, players, etc. As a rule, for this, a USB port is provided in the design, for connection to which an appropriate cable is required; in fact, you can charge from such a device not only mobile gadgets, but also any equipment that can be powered from USB. True, it is worth noting that some manufacturers do not recommend using third-party devices for their equipment if they are not officially approved.

In box

In addition to the main charger, the package may include batteries, cigarette lighter adapter, adapter to another type of battery and bag (case). More about them:

- Battery. Some modern chargers can be equipped with batteries - of course, the latter are best suited for this model. Buying such a kit is often more convenient than buying a "charger" and batteries separately (at least it's faster).

— Cigarette lighter adapter 12 V. Presence of a charger adapter for connection to a car cigarette lighter socket. For more information about this connection, see "Charging from the cigarette lighter"; here we note that not all models with the possibility of such charging are initially equipped with auto adapters. Therefore, if it is important for you to be able to connect the charger to the cigarette lighter out of the box, you should pay attention to the models in the appropriate configuration.

- Battery adapters. Such adapters allow you to use the charger with batteries of "non-native" sizes (see above), and, as a rule, larger than standard ones. For example, a model for AA and AAA batteries can be equipped with adapters for C or even D. This is more convenient than using a charger that was originally designed for large sizes: the device turns out to be more compact, and if necessary, a large battery is connected...without problems through an adapter.

- Storage bag. The bag plays the role of a protective cover and can be used not only for storage, but also for transporting the charger. At the same time, it often provides additional compartments for various items - both complete, such as an external power supply, and additional, such as batteries. Therefore, and also because it fits optimally in size, a complete storage bag is much more convenient than impromptu cases.
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