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Comparison Nitecore Intellicharger i2 v.2 vs Nitecore Digicharger D2

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Nitecore Intellicharger i2 v.2
Nitecore Digicharger D2
Nitecore Intellicharger i2 v.2Nitecore Digicharger D2
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Batteries charging
Charging slots2 шт2 шт
Supported types
Ni-Cd
Ni-Mh
Li-Ion
 
IMR
Ni-Cd
Ni-Mh
Li-Ion
LiFePO4
IMR
Size
AAAA
AAA
AA
C
10440
14500
16340 (CR123)
17500
17670
18350
18490
18650
22650
26650
AAAA
AAA
AA
C
10440
14500
16340 (CR123)
17500
17670
18350
18490
18650
22650
26650
Specs
Operation indicatorlEDdisplay
Independent charge channels2 шт2 шт
Max. charge current500 mA500 mA
Charge current (all channels)500 mA500 mA
Features
Overcharge protection
Polarity test
Overheat protection
General
Movable negative contact
Mains plug on cable
Dimensions (HxWxD)132х70х35 mm143x74x36 mm
Weight104 g168 g
Added to E-Catalogapril 2016april 2016

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).

Operation indicator

The method of indicating work, in other words, the type of notifications provided for in the design of the charger.

— LED. LED indicators can give messages by turning on and off, blinking at a certain frequency, and changing colours. They are cheaper than displays (see below) and are more visible from a distance, but less informative and more limited in their capabilities.

Display. Chargers tend to use simple LCD displays. However, even such screens are much more informative and visual than LED indicators. A wide variety of information can be displayed on the display, and in a form that is convenient for perception: the user does not need to remember what this or that light means, he immediately sees a specific message, for example, “Charging is over”. However and this convenience is much more expensive.

Mains plug on cable

Chargers with a plug for connecting to a socket on the tip of the mains cable. Models with a plug on the wire provide freedom of placement of the “charger” (especially in cramped free space near the outlet). So that the cable does not get tangled at hand, in many models it is made removable, which makes it easy to store the charger.
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