--- title: Epec's Blog | Battery Packs description: Battery Packs | A manufacturing blog focusing on posts about customized product solutions that are beneficial to engineers or anyone in the electronics industry. --- [![Epec Engineered Technologies](https://www.epectec.com/images/logo.png "Epec Engineered Technologies")](https://www.epectec.com/) [![Epec Engineered Technologies](https://www.epectec.com/images/logo.png "Epec Engineered Technologies")](https://www.epectec.com/) - [Articles](https://www.epectec.com/articles/) - [Blog](https://blog.epectec.com/) - [Webinars](https://www.epectec.com/webinar/) - [Videos](https://www.epectec.com/videos/) - [Case Studies](https://www.epectec.com/case-studies/) - [News & Events](https://www.epectec.com/news/) - [Customer Portal](https://system.netsuite.com/c.406760/site/NSlogin.html) - [About](https://www.epectec.com/about/overview/) - Back - [Company Overview](https://www.epectec.com/about/overview/) - [Our History](https://www.epectec.com/about/our-history/) - 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[Register](https://secure.epecpcb.com/epec/index2.jsp) [![](https://www.epectec.com/images/InstantPCBQuote-logo.png)](https://www.epectec.com/instantpcbquote/) [Login](https://secure.epecpcb.com/epec/) [Register](https://secure.epecpcb.com/epec/index2.jsp) Register to Quote and Order Your PCBs Fast, Easy & Online, 24/7 - [Home](https://www.epectec.com/) - [Blog](https://blog.epectec.com/) Share This Page: [LinkedIn](https://blog.epectec.com/#linkedin) [X](https://blog.epectec.com/#x) [Facebook](https://blog.epectec.com/#facebook) [Email](https://blog.epectec.com/#email) # Epec's Blog | Electronics Manufacturing Solutions --- ## [Understanding UN 38.3 Testing: A Timeline Guide for OEMs](https://blog.epectec.com/understanding-un-38-3-testing-a-timeline-guide-for-oems) [![UN 38.3 testing and certification](https://blog.epectec.com/hubfs/blog/un-38-3-testing-and-certification.jpg "UN 38.3 testing and certification")](https://blog.epectec.com/understanding-un-38-3-testing-a-timeline-guide-for-oems) Written by [Anton Beck](https://blog.epectec.com/author/anton-beck) Posted on October 14, 2026 at 8:59 AM - [Tweet](https://twitter.com/share) [Lithium-based batteries](https://www.epectec.com/batteries/custom-lithium-battery-packs.html) offer high-energy density for devices. However, the materials within the cell are extremely unstable and reactive. Due to this issue, these batteries are considered dangerous and hazardous goods under United Nations regulations. [Read More](https://blog.epectec.com/understanding-un-38-3-testing-a-timeline-guide-for-oems) --- ## [Fuel Gauge: The Most Critical Component in Any Battery Pack BMS](https://blog.epectec.com/fuel-gauge-the-most-critical-component-in-any-battery-pack-bms) [![4S2P battery pack with BMS](https://blog.epectec.com/hubfs/blog/4s2p-battery-pack-with-bms.jpg "4S2P battery pack with BMS")](https://blog.epectec.com/fuel-gauge-the-most-critical-component-in-any-battery-pack-bms) Written by [Dominic Bento](https://blog.epectec.com/author/dominic-bento) Posted on September 2, 2026 at 9:08 AM - [Tweet](https://twitter.com/share) When designing a [battery management system](https://www.epectec.com/batteries/battery-management-systems.html), it is crucial that the correct fuel gauge is selected. Selecting the best-fit fuel gauge for your [battery pack](https://www.epectec.com/batteries/) will improve both efficiency and overall accessibility. [Read More](https://blog.epectec.com/fuel-gauge-the-most-critical-component-in-any-battery-pack-bms) --- ## [Packaging Materials That Improve Battery Safety and Thermal Stability](https://blog.epectec.com/packaging-materials-that-improve-battery-safety-and-thermal-stability) [![Battery pack with thermal gap pads used in an aerospace application](https://blog.epectec.com/hubfs/blog/battery-pack-with-thermal-gap-pads.jpg "Battery pack with thermal gap pads used in an aerospace application")](https://blog.epectec.com/packaging-materials-that-improve-battery-safety-and-thermal-stability) Written by [Anton Beck](https://blog.epectec.com/author/anton-beck) Posted on August 6, 2026 at 9:03 AM - [Tweet](https://twitter.com/share) [Battery packs](https://www.epectec.com/batteries/) are expected to do more today than ever before. Devices are getting smaller, runtimes are getting longer, charging speeds are increasing, and power demands continue to rise across industries ranging from [medical devices](https://www.epectec.com/batteries/battery-packs-for-medical-devices.html) and industrial equipment to consumer electronics and transportation systems. As these demands increase, thermal management and safety have become some of the most important aspects of battery pack design. [Read More](https://blog.epectec.com/packaging-materials-that-improve-battery-safety-and-thermal-stability) --- ## [Battery Packs for Medical Devices: Balancing Safety and Performance](https://blog.epectec.com/battery-packs-for-medical-devices-balancing-safety-and-performance) [![Battery pack used in medical room setting](https://blog.epectec.com/hubfs/blog/battery-pack-for-medical-devices.jpg "Battery pack used in medical room setting")](https://blog.epectec.com/battery-packs-for-medical-devices-balancing-safety-and-performance) Written by [Anton Beck](https://blog.epectec.com/author/anton-beck) Posted on July 14, 2026 at 8:51 AM - [Tweet](https://twitter.com/share) [Medical devices equipped with battery packs](https://www.epectec.com/batteries/battery-packs-for-medical-devices.html) are required to provide optimal safety and performance when in use. Whether these devices are used for monitoring, diagnostic, or surgical applications, battery packs can pose serious risks to patients and medical staff if they malfunction, overheat, or are inefficient. [Read More](https://blog.epectec.com/battery-packs-for-medical-devices-balancing-safety-and-performance) --- ## [30-60-90 Day Battery Maintenance: Preventing Costly Pack Failures](https://blog.epectec.com/30-60-90-day-battery-maintenance-preventing-costly-pack-failures) [![Battery pack during inspection](https://blog.epectec.com/hubfs/blog/battery-pack-inspection.jpg "Battery pack during inspection")](https://blog.epectec.com/30-60-90-day-battery-maintenance-preventing-costly-pack-failures) Written by [Justin Bickford](https://blog.epectec.com/author/justin-bickford) Posted on June 3, 2026 at 9:03 AM - [Tweet](https://twitter.com/share) When [battery packs](https://www.epectec.com/batteries/) are placed into storage, it is easy to assume they will be ready whenever they are needed. In reality, a stored battery pack is still changing over time. The cells continue to [self-discharge](https://blog.epectec.com/external-battery-storage-the-chemistry-and-state-of-charge), the pack continues to age, and the storage environment can affect the condition of the pack long before it is installed into equipment. [Read More](https://blog.epectec.com/30-60-90-day-battery-maintenance-preventing-costly-pack-failures) --- ## [Hidden Costs & Challenges of Offshore Battery Pack Manufacturing - Q&A](https://blog.epectec.com/hidden-costs-and-challenges-of-offshore-battery-pack-manufacturing-q-and-a) [![Hidden Costs and Challenges of Offshore Battery Pack Manufacturing - Q&A](https://blog.epectec.com/hubfs/email-images/offshore-battery-pack-manufacturing.jpg "Hidden Costs and Challenges of Offshore Battery Pack Manufacturing - Q&A")](https://blog.epectec.com/hidden-costs-and-challenges-of-offshore-battery-pack-manufacturing-q-and-a) Written by [Epec Engineered Technologies](https://blog.epectec.com/author/epec-engineered-technologies) Posted on May 26, 2026 at 1:30 PM - [Tweet](https://twitter.com/share) At the conclusion of our webinar, [Hidden Costs and Challenges of Offshore Battery Pack Manufacturing](https://www.epectec.com/webinar/05-21-2026/hidden-costs-and-challenges-of-offshore-battery-pack-manufacturing.html), we had several questions submitted to our presenter, Battery Product Manager Anton Beck. We compiled these into a readable format on our blog. [Read More](https://blog.epectec.com/hidden-costs-and-challenges-of-offshore-battery-pack-manufacturing-q-and-a) --- ## [How to Avoid Common BMS Design Mistakes](https://blog.epectec.com/how-to-avoid-common-bms-design-mistakes) [![Custom battery pack with BMS designed for cell balancing](https://blog.epectec.com/hubfs/blog/custom-battery-pack-with-bms.jpg "Custom battery pack with BMS designed for cell balancing")](https://blog.epectec.com/how-to-avoid-common-bms-design-mistakes) Written by [Anton Beck](https://blog.epectec.com/author/anton-beck) Posted on April 28, 2026 at 9:03 AM - [Tweet](https://twitter.com/share) [Battery management systems](https://blog.epectec.com/battery-management-systems-considerations-for-optimal-performance) (BMS) are safety devices integrated into battery packs to monitor the cells during charging and discharging phases. These systems can activate safety controls when problems arise while logging data that you can use to evaluate the cell's stability. When functioning properly, the BMS can improve the efficiency and longevity of the [battery pack](https://www.epectec.com/batteries/). Unfortunately, BMS design flaws may cause serious risks and failures to cells. [Read More](https://blog.epectec.com/how-to-avoid-common-bms-design-mistakes) --- ## [How Certification Testing Impacts Custom Battery Development](https://blog.epectec.com/how-certification-testing-impacts-custom-battery-development) [![Various battery pack certifications](https://blog.epectec.com/hubfs/blog/various-battery-pack-certifications.jpg "Various battery pack certifications")](https://blog.epectec.com/how-certification-testing-impacts-custom-battery-development) Written by [Anton Beck](https://blog.epectec.com/author/anton-beck) Posted on April 8, 2026 at 9:18 AM - [Tweet](https://twitter.com/share) Products that use [battery packs](https://www.epectec.com/batteries/) may require [certification](https://www.epectec.com/batteries/battery-pack-certifications.html) through national and international quality and safety organizations. These regulations ensure that the battery packs meet compliance standards for packaging, transportation, use, storage, and disposal. [Read More](https://blog.epectec.com/how-certification-testing-impacts-custom-battery-development) --- ## [The Effect of Humidity on PCBAs in Battery Packs](https://blog.epectec.com/the-effect-of-humidity-on-pcbas-in-battery-packs) [![Example of a PCBA used inside a custom battery pack](https://blog.epectec.com/hubfs/blog/pcba-used-inside-a-custom-battery-pack.jpg "Example of a PCBA used inside a custom battery pack")](https://blog.epectec.com/the-effect-of-humidity-on-pcbas-in-battery-packs) Written by [Luis Vazquez](https://blog.epectec.com/author/luis-vazquez) Posted on March 25, 2026 at 9:06 AM - [Tweet](https://twitter.com/share) [Printed circuit board](https://www.epectec.com/pcb/) assemblies used inside [battery packs](https://www.epectec.com/batteries/) operate in a uniquely demanding environment. They are often enclosed, exposed to temperature swings, subjected to charge and discharge cycles, and expected to perform reliably for years without service. [Read More](https://blog.epectec.com/the-effect-of-humidity-on-pcbas-in-battery-packs) --- ## [Critical Safety Requirements for Medical Battery Pack Design](https://blog.epectec.com/critical-safety-requirements-for-medical-battery-pack-design) [![Advanced medical battery pack design featuring integrated BMS](https://blog.epectec.com/hubfs/blog/advanced-medical-battery-pack-design.jpg "Advanced medical battery pack design featuring integrated BMS")](https://blog.epectec.com/critical-safety-requirements-for-medical-battery-pack-design) Written by [Anton Beck](https://blog.epectec.com/author/anton-beck) Posted on March 10, 2026 at 8:57 AM - [Tweet](https://twitter.com/share) Medical devices using portable [battery packs](https://www.epectec.com/batteries/) require special design considerations to ensure optimal power for these devices while upholding the highest levels of safety. The [medical devices](https://www.epectec.com/batteries/battery-packs-for-medical-devices.html) can use lithium-ion, lithium metal, lead acid, NiMH, silver-oxide, and alkaline battery cells based on power requirements and usage. The battery packs cannot malfunction when in use, during sterilization, or when placed into storage. [Read More](https://blog.epectec.com/critical-safety-requirements-for-medical-battery-pack-design) [All posts](https://blog.epectec.com/all) | [Next](https://blog.epectec.com/topic/battery-packs/page/2) --- ### Recent Posts --- ### Posts by Topic - [Printed Circuit Boards (162)](https://blog.epectec.com/topic/printed-circuit-boards) - [Product Design (138)](https://blog.epectec.com/topic/product-design) - [Battery Packs (122)](https://blog.epectec.com/topic/battery-packs) - [Cable Assemblies (102)](https://blog.epectec.com/topic/cable-assemblies) - [Flex & Rigid-Flex PCB's (95)](https://blog.epectec.com/topic/flex-rigid-flex-pcbs) - [Electronics Industry (61)](https://blog.epectec.com/topic/electronics-industry) - [User Interfaces (55)](https://blog.epectec.com/topic/user-interfaces) - [Quality Solutions (33)](https://blog.epectec.com/topic/quality-solutions) - [Flexible Heaters (30)](https://blog.epectec.com/topic/flexible-heaters) - [Events, Training, and Support (9)](https://blog.epectec.com/topic/events-training-and-support) - [RF Products (7)](https://blog.epectec.com/topic/rf-products) - [CNC Machining (3)](https://blog.epectec.com/topic/cnc-machining) - [Fans & Motors (1)](https://blog.epectec.com/topic/fans-motors) See All --- --- ### Need Help with A Project? 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