PMBL Ltd - Batteries

An innovative customer orientated company, we pride ourselves on our ability to offer the complete procurement solution for all battery technologies. From the initial project consultation > through design consultation > prototype approval > manufacture > delivery.

While assisting our client in the management of their supply chain we will ensure a high quality, cost effective solution to their battery needs all within an ISO 9001:2000 environment.

As well as using our own batteries, at PMBL we work with batteries produced by the major battery manufacturers to ensure that we always provide the most appropriate solution for your requirements.

Different battery manufacturers supply batteries with different specifications, properties and costs. Our engineers have extensive knowledge of the batteries available on the market and will work with you to confirm your design requirements and recommend the most appropriate battery and most economical solution.

Approvals
PMBL are recommended by VARTA for battery pack assembly

We are proud to have been awarded approved battery assembler status by the following companies:- VARTA, GP Batteries and Ultralife Batteries.

Manufacturers that we work with

• PMBL
• Varta Microbattery
• GP Batteries
• Saft
• Panasonic
• Duracell
• Sanyo
• Tadiran
• Ultralife
• Yuasa
• Samsung
• LG

For more information about the types of batteries that the companies can supply, click on the link to the DataSheets

Talk To Us
Talk to one of our battery specialists today for more information.

Call us on 0870 7705311 or email solutions@pmbl.co.uk or send us your enquiry on our simple contact form and will will get back to you as soon as possible.

If you need advice about Lithium Ion Batteries we can help.  Call PMBL now on 0870 770 5311 or email:  solutions@pmbl.co.uk

PMBL can manufacture Lithium Ion batteries from cells by Varta, GP, Saft, Sanyo and many others.

The Li-ion Battery is a low maintenance battery, an advantage that most other chemistries cannot claim. There is no memory and no scheduled cycling is required to prolong the battery's life. In addition, the self-discharge is less than half compared to Ni-Cd and NiMH, making the Li-ion well suited for modern fuel gauge applications.

The high cell voltage of Lithium ion Battery allows the manufacture of battery packs consisting of only one cell. Many of today's mobile phones run on a single cell, an advantage that simplifies battery design. Supply voltages of electronic applications have been heading lower, which in turn requires fewer cells per battery pack. To maintain the same power, however, higher currents are needed. This emphasises the importance of very low cell resistance to allow unrestricted flow of current.

Nickel Cadmium (Ni-Cd) Batteries
Among rechargeable batteries, Ni-Cd remains a popular choice for applications such as two-way radios, emergency medical equipment, professional video cameras and power tools. Over 50 percent of all rechargeable batteries for portable equipment are Ni-Cd. However, the introduction of batteries with higher energy densities and less toxic metals is causing a diversion from Ni-Cd to newer technologies.

PMBL can manufacture your Ni-Cd batteries with cells from GP, Saft, Sanyo, Emmerich and many more.

Advantages and Limitations of Ni-Cd Batteries

Advantages

• Fast and simple charge - even after prolonged storage.
• High number of charge/discharge cycles - if properly maintained, the Ni-Cd provides over 1000 charge/discharge cycles.
• Good load performance - the Ni-Cd allows recharging at low temperatures.
• Long shelf life - in any state-of-charge.
• Simple storage and transportation - most airfreight companies accept the Ni-Cd without special conditions.
• Good low temperature performance.
• Forgiving if abused - the Ni-Cd is one of the most rugged rechargeable batteries.
• Economically priced - the Ni-Cd is the lowest cost battery in terms of cost per cycle.
• Available in a wide range of sizes and performance options - most Ni-Cd cells are cylindrical.

Limitations

• Relatively low energy density - compared with newer systems.
• Memory effect - the Ni-Cd must periodically be exercised to prevent memory.
• Environmentally unfriendly - the Ni-Cd contains toxic metals.
• Some countries are limiting the use of the Ni-Cd battery.
• Has relatively high self-discharge - needs recharging after storage.

Features

• Cell Voltage: 3.0V (nominal)
• Capacity: 30mAh to
• Energy by Weight: Depending on cell configuration, up to 105 Wh/lb.
• Energy by Volume:(230 Wh/kg); 9.0 Wh/in.3 (550 Wh/l).
• Discharge Characteristics: Flat (stable voltage) discharge curves.
• Shelf Life:10+ years at 20°C
• Temperature Range: -20°C to +60°C
• Sizes: Various Coin & Round Cells.

Applications:
General purpose in photographic and electronic applications requiring small, high power batteries, e.g., security transmitters, smoke alarms, computer peripherals, communications equipment, cameras, personal organizers, memory backup, lighting.

The success of the NiMH has been driven by its high energy density and the use of environmentally friendly metals. The modern NiMH offers up to 40 percent higher energy density compared to Ni-Cd. There is potential for yet higher capacities, but not without some negative side effects.

Both NiMH and Ni-Cd are affected by high self-discharge. The Ni-Cd loses about 10 percent of its capacity within the first 24 hours, after which the self-discharge settles to about 10 percent per month. The self-discharge of the NiMH is about one-and-a-half to two times greater compared to Ni-Cd. Selection of hydride materials that improve hydrogen bonding and reduce corrosion of the alloy constituents reduces the rate of self-discharge, but at the cost of lower energy density.

The NiMH has been replacing the Ni-Cd in markets such as wireless communications and mobile computing. In many parts of the world, the buyer is encouraged to use NiMH rather than Ni-Cd batteries. This is due to environmental concerns about careless disposal of the spent battery.

PMBL can manufacture your NiMH batteries with cells from Varta, GP, Saft, Sanyo, Emmerich and many more.