Epec's Blog | Electronics Manufacturing Solutions

This blog post provides a quick overview of what is involved in the battery pack potting process. Battery potting can greatly aid in stability and help to optimize the performance of your finished custom battery pack. Potting materials are used to provide mechanical reinforcement to housed-assemblies and to protect components against exposure to harmful chemicals, moisture, mechanical shock and vibrations, and other hazards.

Some additional benefits of using battery potting include low cost shells, hermetic like seal, and good electrical insulation.

This topic is mainly focused on properly shipping lithium ion batteries due to shipping regulations, but could also apply to Ni-MH where appropriate.

When a lithium battery pack is designed using multiple cells in series, it is very important to design the electronic features to continually balance the cell voltages. This is not only for the performance of the battery pack, but also for optimal life cycles.

When designing and manufacturing battery packs, it is important to recognize that there will be limitations when dealing with specific cost and performance parameters. You may encounter circumstances where you will have to increase the cost of your battery pack or decrease aspects of the overall performance. We'll help detail some of those limitations and how to find solutions that help move your project forward.

We're very proud to report that our product webinar, Lithium Battery Regulations and How They Affect OEMs, had the most viewer responses ever for a webinar hosted here at Epec! Over 300 registered for the event, confirming that these latest changes to shipping lithium battery are of real concern amongst some of the industry’s leading Original Equipment Manufacturers (OEMs).

At Epec, we are in a unique position of having the capabilities to produce domestically at our Colorado tech center, our Massachusetts assembly facility, or your partner factories in Asia. This allows us both flexibility and control on prototype development, regulatory builds, pilot ruins, and production quantities.

In today's battery and charger market, most companies typically provide either battery pack assemblies or battery pack chargers, as opposed to providing both. In the past, buying a battery from one source and a charger from another worked just fine when using the older NiCd batteries with overnight chargers. However, due to new battery chemistries and the increasing need for faster charge times, careful matching of the charger to the battery has become essential. Without proper battery and charger matching, aspects such as safety, cycle life, and run-time may be greatly affected.

There are several factors to consider when selecting the type of battery cell to use in your battery pack design. Looking at the battery requirements and the dimensional space available are important. Another factor that comes up is pricing. The top tier manufacturer brands can be expensive, but there are also comparable solutions in Asia that will reduce the cost.

The shelf life of a rechargeable nickel metal hydride (NiMH) battery will vary depending on the storage temperature and the size of any attached load. The battery shelf life will also vary by manufacturer. Panasonic recommends the following for their NiMH battery cells.