For the operation of large autonomous electrosupply, type D batteries are used, but if the device has to be used often enough, a significant amount of money can be spent on the constant replacement of power supplies. Therefore have been developed nickel metal hydride batteries HR20.
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Specifications HR20
In order not to damage the device in which you plan to install the battery, you need to know the technical characteristics of the current source. For the HR20 battery, the most important parameters are:
| Parameter | Value |
|---|---|
| Basic designation | Type D |
| The form | Barrel |
| View | Ni-mh |
| Capacity | 2200-11500 mAh |
| Voltage | 1.2 v |
| Analogs HR20 | Read more HERE |
| Height | 28.9 mm |
| Diameter | 61.5 mm |
| Weight | ~ 100 gr |
| Operating temperature range | from -20˚С to + 50˚С |
| Number of recharge cycles | up to 1000 |
Nickel-metal hydride batteries also have a minimal memory effect, which positively affects the life of the cell.
Important! Do not insert lithium ion batteries type size D, since they have a voltage of 3.6v, not 1.2v.
Analogs and what can be replaced HR20
The HR20 battery has few full analogs. Almost "painless" power supply can be replaced by the following elements:
- 373
- BL-2.
- 7662
- Salt Battery - R20.
- Alkaline battery — Lr20.
If the portable device is not too sensitive to high voltage, then you can use any type D battery to replace it.
Battery Applications
Due to the possibility of sequential installation, as well as high capacity, HR20 batteries are most often used in fairly powerful portable devices. This category of devices includes:
- Lanterns.
- Tape recorders.
- Kids toys.
- Sound synthesizers unprofessional level.
In devices where significant indicators of discharge current are not required, a battery of this type can be used to ensure long-term functioning of the electrical circuit.
For example, such elements can be used in various fire safety systems, for electric ignition of gas equipment, as well as in medical devices.
How to charge HR20 battery
On how correctly the NI-MH battery will be charged, the life of the rechargeable power source will depend, first of all.
In case of gross violation of the basic rules, it is also possible to permanently damage the product, and if it is explosively depressurized or ignited, serious injury may result. In order to maximize the life of the product and minimize the likelihood of accidents, it is not recommended:
- Overheat the product.
- Discharge to a voltage value of poles of 0.9v or lower.
- Recharge (keep charging for a long time).
- Use in-house chargers.
- Break the polarity when connected.
If the battery has warmed up significantly during charging, it is recommended that you leave it disconnected from the charger and power consumers for a while until the temperature drops to room values.
Popular manufacturers and their features
The most popular HR20 battery manufacturers are:
- GP.
- Varta.
- Robiton
- Duracell.
- Ansmann.
- Energizer
- Camelion.
The products of these brands have excellent indicators of quality and durability.
What to look for when purchasing
Having decided on the battery manufacturer, you should carefully study the product labeling.In addition to the type of element, the package and the case must have a voltage and capacitance designation, which must also correspond to an element of this type.
The absence of damage to the packaging cannot guarantee that the element was stored in appropriate temperature conditions, but in this case, one can hope for the absence of mechanical damage that could adversely affect the performance of the battery.
Still have questions about HR20 batteries or have something to add? Then write to us about it in the comments, this will make the material more complete and accurate.
