Batteries

Packed energy


It is impossible to imagine our everyday lives without the battery in many applications. As early as 1800, the first battery in the form of a voltaic column was invented by Alessandro Volta. They had an important role as the forerunner of the battery we know today. There are also finds from about 2000 years ago, but it has never been clarified beyond doubt whether they were used as batteries in today's sense.

A physical digression

The electric cell is an energy storage device. Chemical energy is converted into electrical energy and can then be used by an electrical consumer. A distinction is made against primary cells; these can only be discharged once and must then be disposed of in accordance with legal requirements. In contrast, secondary cells can be recharged and discharged several times. Important data when choosing the right battery are the following: Capacity, power, energy content, and self-discharge. The capacity is given in ampere-hours (Ah), it reflects the charge stored in the cell. Power is expressed in watts (W) and indicates the amount of electrical energy that can be drawn from the battery. The energy content, whose unit is joules per kilogram (J/kg), indicates how much energy is stored per mass. The larger the cell, the higher the energy it contains. Self-discharge is an unavoidable effect of rechargeable secondary cells. Batteries lose power through storage. They self-discharge. The rate of self-discharge depends on the temperature and battery type. The lower the storage temperature, the lower or slower the self-discharge.

Differences in batteries

In addition to the distinction between portable batteries and starter batteries (for motor vehicles), batteries are differentiated according to voltage, power and capacity. Furthermore, there are classifications according to geometric and constructive design. When buying a battery, the manufacturer's specifications for the desired consumer must be observed. This usually refers to a certain characteristic. Unofficially, however, the familiar classifications with a letter still apply, for example the AA, D or C group. Batteries from 1.2 volts to 22.5 volts are available for private households.

An overview of standard batteries:

Because the purchase of secondary cells can often be confusing for end users, we have compiled a small overview of the most common types including their intended use.

  • 9V block batteries, 9 volts, measuring instruments, toys, smoke detectors
  • Mono cells (D), 1.5 volts, torches, tape recorders
  • Baby cells (C), 1.5 volts, same use as C blocks
  • Mignon batteries (AA), 1.5 volts, photo cameras, toys, alarm clocks, remote controls
  • Micro batteries (AAA), 1.5 volts, digital cameras, MP3 players, computer mice, keyboards, calculators
  • Mini batteries (AAAA), 1.5 volts, same use as AAA batteries, less common
  • Lady batteries (N), 1.5 volts, for confined spaces, e.g. B. Door openers, bicycle lights, LED torches
  • Duplex batteries, 3 volts, angle wands, experiment kits, torches
  • Flat batteries, 4.5 volts, consists of three Mignon cells, often used for explanatory purposes
  • Lantern battery, 6 volts, handheld headlamp
  • Button cell, 1.3V-3.6V, calculator, wristwatches, hearing aids

Batteries at Foto Erhardt

In our online shop you can buy selected brand products and top quality batteries at very favourable conditions. We only sell branded goods and source our merchandise from reputable manufacturers. You can rest assured that our batteries will not sit around in our warehouse for long. Although we buy in large quantities, we also have a correspondingly high turnover and a very short time from storage to goods issue. Our standard batteries, monobloc batteries, Mignon batteries or button cells and batteries for hearing aids are always of perfect quality when we deliver them to you.


Update 19.03.2024.
Show 1 to 36 (of in total 98 products)
Varta Lithium CR 123A 3 Volt
in stock

Varta Lithium CR 123A 3 Volt

4,99 €
VAT incl.excl. Shipping costs
Varta CR2 EP Lithium Battery
in stock

Varta CR2 EP Lithium Battery

4,99 €
VAT incl.excl. Shipping costs
Varta PX 28 6.0 V
in stock

Varta PX 28 6.0 V

8,99 €
VAT incl.excl. Shipping costs
Photobattery Lithium 2CR5
in stock

Photobattery Lithium 2CR5

7,99 €
VAT incl.excl. Shipping costs
Varta V 625 U
in stock

Varta V 625 U

3,99 €
VAT incl.excl. Shipping costs
Varta 6131 CR1/3N
in stock

Varta 6131 CR1/3N

7,99 €
VAT incl.excl. Shipping costs
WeinCell Button Cell 1.35V MRB625 Zinc/Air
in stock

WeinCell Button Cell 1.35V MRB625 Zinc/Air

8,99 €
VAT incl.excl. Shipping costs
Varta 4706 Longlife V1500 AA Longlife 4 pack
in stock

Varta 4706 Longlife V1500 AA Longlife 4 pack

4,99 €
VAT incl.excl. Shipping costs
Lithium DL/CR 2025
in stock

Lithium DL/CR 2025

1,99 €
VAT incl.excl. Shipping costs
VARTA Lithium CRP-2P
in stock

VARTA Lithium CRP-2P

9,99 €
VAT incl.excl. Shipping costs
VARTA 4901 LR01
in stock

VARTA 4901 LR01

3,49 €
VAT incl.excl. Shipping costs
Varta V10GA
in stock

Varta V10GA

3,99 €
VAT incl.excl. Shipping costs
Lithium DL/CR 2032
in stock

Lithium DL/CR 2032

2,99 €
VAT incl.excl. Shipping costs
Lithium DL/CR 2016
in stock

Lithium DL/CR 2016

1,99 €
VAT incl.excl. Shipping costs
Varta V 76 PX 1.55V
in stock

Varta V 76 PX 1.55V

4,99 €
VAT incl.excl. Shipping costs
Varta PX 4034 PX 6.0 V
in stock

Varta PX 4034 PX 6.0 V

8,49 €
VAT incl.excl. Shipping costs
Varta V 13 GA LR 44 1.5V
in stock

Varta V 13 GA LR 44 1.5V

3,99 €
VAT incl.excl. Shipping costs
Varta V12GA
in stock

Varta V12GA

3,99 €
VAT incl.excl. Shipping costs
Varta V13GS
in stock

Varta V13GS

4,59 €
VAT incl.excl. Shipping costs
Varta V 23 GA
in stock

Varta V 23 GA

5,99 €
VAT incl.excl. Shipping costs
VARTA 4922 9V block
in stock

VARTA 4922 9V block

3,99 €
VAT incl.excl. Shipping costs
Varta V 395
in stock

Varta V 395

4,99 €
VAT incl.excl. Shipping costs
Varta 4203 AAA Micro Pack of 4
in stock

Varta 4203 AAA Micro Pack of 4

4,69 €
VAT incl.excl. Shipping costs
Duracell CR2 photo battery 3V
in stock

Duracell CR2 photo battery 3V

3,99 €
VAT incl.excl. Shipping costs
Rayovac V10AT Blister of 6 Hearing Aid Batteries
in stock

Rayovac V10AT Blister of 6 Hearing Aid Batteries

4,10 €
VAT incl.excl. Shipping costs
Lithium DL/CR 1616
in stock

Lithium DL/CR 1616

2,49 €
VAT incl.excl. Shipping costs
VARTA V 362 watch battery
in stock

VARTA V 362 watch battery

4,99 €
VAT incl.excl. Shipping costs
Lithium DL/CR 2430
in stock

Lithium DL/CR 2430

1,99 €
VAT incl.excl. Shipping costs
Lithium DL/CR 1620
in stock

Lithium DL/CR 1620

2,49 €
VAT incl.excl. Shipping costs
Lithium DL/CR 1220
in stock

Lithium DL/CR 1220

2,49 €
VAT incl.excl. Shipping costs
Varta V 377
in stock

Varta V 377

3,99 €
VAT incl.excl. Shipping costs
Varta V 392
in stock

Varta V 392

4,99 €
VAT incl.excl. Shipping costs
Varta Lithium DL/CR 2320
in stock

Varta Lithium DL/CR 2320

2,99 €
VAT incl.excl. Shipping costs
VARTA 6F22 9V block
in stock

VARTA 6F22 9V block

4,29 €
VAT incl.excl. Shipping costs
Duracell button cell CR2032 3V 2pcs blister
in stock

Duracell button cell CR2032 3V 2pcs blister

4,99 €
VAT incl.excl. Shipping costs
Panasonic eneloop pro rechargeable battery AA-Mignon 2500mAh 4-pack
in stock

Panasonic eneloop pro rechargeable battery AA-Mignon 2500mAh 4-pack

18,49 €
VAT incl.excl. Shipping costs

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