Battery pack production and battery repar. You can request a quote using our request form  PLEASE, SEND US YOUR REQUEST or Contact Page.

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Battery pack purpose

Battery cells come with  fixed voltage and capacity. While capacity can vary, voltage remains the same. In order to meet your power requirements a battery pack may need to be used. The type of the battery, the number of  cells, the shape of the pack and the battery pack components will be determined according to the voltage and the load current of the device being powered.

Other considerations will be available space, operating temperature, using conditions, transportation requirements and charge / discharge specifications.

Electrical considerations

How many Ah do we need?
Cell capacity is rated in Amps or miliAmps  per hour.  The symbol for capacity is  C  and represent  amps multiplied with  hours.

If you divide C by hours you get amps, divide by amps and get hours. For example  a 5 Ah battery is the same  5000 mAh. So if you need a 10 hours discharge, you can get a current of 0.5 Amps.  Or if you need 100 miliamp-current  you can use the battery  for 50 hours  ( 5000/100mA  = 50 hours. )
The faster you discharge, the lower the capacity of a battery.

Voltage requirements

The first question to answer is:  “How much voltage do I need ? ), and  the second: “How many cells in series ?”

The voltage of any cell is a moving target. The following table shows the range of  various chemistries:

Specifications NiMh NiCd Li-Ion LiPo VRLA
Cell voltage (V) 1.2 1.2 3.6   3.2-3.8 2
Discharge cutoff voltage (V) 1 1 2.5-3  2.7-3 1.75
Charge cutoff voltage (V)  1.38-1.5  1.38-1.5 4.20  4.2  2.40
Temperature range – 20 do 65 °C – 20 do 65 °C – 20 do 60 °C  – 20 do 60 °C – 20 do 50 °C
Cycle life (80 % discharge) 300-500 1000 500-1000  300-500 200-300
Overcharge tolerance Low Moderate Very low  Very low High

So 10 cells pack of NiMH batteries would have 12 V when fully charged, and will run down to 10 V when fully discharged.
Your system must be able to tolerate this voltage range.
Furthermore, if you want to be able to charge while your system is running, the system must be able to tolerate the charging voltage which is usually higher then nominal of a fully charged voltage.
It is very important to match your cells in a battery pack. When a battery pack is  near zero volts under load, the weaker cells will go into reversal and suffer damage.

Battery pack shape 

After required voltage and capacity, it is important to choose the appropriate battery pack shape:

TIP4-405TP010BPTIP10-108TIP8-805

Here you can see some of many battery packs shapes. It usually depends on the number of battery cells and on the available space in battery case.

We have provided a Battery configurator to make it easier to configure your battery pack ( voltage, capacity, battery model, battery size and battery pack shape )

BATTERY PACK CONFIGURATOR

Battery cell choice

We are able to offer you a wide range of individual battery supply solutions,  for portable and stationary applications. Our product program covers Battery Pack production based on Ni-MH and NiCd batteries, that can be found on the market today.

We use high quallity NiMH, NiCd and Li-Ion battery cells for battery pack production. Particular attention was paid to the development of the most advanced battery packs in cooperation with the best manufacturers of lithium-ion batteries. The whole package design, safety electronics design, as well as the project of design battery packs can be offered as part of our program in continuous cooperation with our partners. For the production of  a required battery pack we have selected the best  and the most modern cells available on the market.

INDUSTRIAL BATTERIES WHOLESALE

BATERIJE

You can check details at our Shop page, or in the following list of specifications:

Nowadays Nickel Metal Hydride offers 40% more capacity than Nickel Cadmium batteries but its decisive advantage is the absence of toxic metals.nimh baterije
The main advantages of nickel metal hydride batteries and battery packs in our product range are: long service life, economy, excellent charging and discharging features, wide temperature range and above all, a very short time of battery packs production, with the possibility of sending the sample for overview, including complete documentation (drawings). So, in a constant cooperation with our partners we can offer you …

Panasonic
Focus Power
Standard Nickel Cadmium cells are often present in the development of  battery packs due to their indispensable characteristics.
Long life, reliability, wide temperature range with proper handling can provide a reliable battery pack for all purposes. In a very short  time we can offer the design of  a battery pack according to your request, samples, and documentation.

Panasonic
Focus Power

Particular attention was paid to the development of  most advanced battery packs in cooperation with the best manufacturers of lithium ion cells.  We offer the battery pack and safety electronics design  and  the final production of the battery pack as part of our product range in constant collaboration with our partners. To create a battery pack for hand tools, we  select the best and most modern cells available on the market.

Li-Ion Cylindrical Cells
Li-Ion Prismatic Cells
Lithium-ion polymer batteries, polymer lithium ion or more commonly lithium polymer batteries (abbreviated Li-poly, Li-Pol, LiPo, LIP, PLI or LiP) are rechargeable (secondary cell) batteries. LiPo batteries are usually composed of several identical secondary cells in parallel to increase the discharge current capability, and are often available in series “packs” to increase the total available voltage.
This type has technologically evolved from lithium-ion batteries.
The primary difference is that the lithium-salt electrolyte is not held in an organic solvent but in a solid polymer composite such as polyethylene oxide or polyacrylonitrile.

The advantages of Li-ion polymer over lithium-ion design include potentially lower manufacturing cost,  adaptability to a wide variety of packaging shapes, reliability, and ruggedness, with the disadvantage of holding less charge.

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