If you’ve researched lithium and lead acid batteries (or if you’ve been reading our previous blog posts), you know that lithium is the right choice for power applications requiring a strong life span, deep cycling capacity and maintenance-free operation. But what you might not know is that to see optimal results, customizing your lithium battery isn’t optional. It’s critical.
If you’re thinking about picking up a lithium battery, here are 4 customization questions you must ask to ensure you get more from your chosen power solution. First, focus on performance by asking:
1) What are my charging requirements?
When assessing your application’s power needs, first make sure you understand your lithium battery charging requirements.
Lithium batteries have charge rate specifications that are directly related to the Battery Management System (BMS). Charge and discharge rate is managed to ensure safety, equalization and cycle life. Most RELiON lithium-ion phosphate (LiFePO4) batteries can charge at 1x the rated capacity. Some applications will require a higher charge rate (2x rated capacity), which can be achieved. So which BMS is right for you? Review your application’s specifications or work with an expert to determine the best fit for your needs.
2) What are my capacity requirements?
After charging, consider your lithium battery capacity requirements. Capacity, as the name implies, is the measure of energy stored in a battery. Different types of lithium batteries perform better and last longer in different discharge situations, so it’s important you choose a solution based on how much power your application will draw and for how long.
Start by understanding your battery’s ultimate function. Are you looking for a battery to kick-start your application, such as for a motor vehicle? You’ll want a lithium battery capable of providing a high burst of power in a short time, making overall capacity less of an issue. Howe
ver, if you need to power electronics for a sustained period – such as keeping a watercraft’s electronics active – customize in favor of high capacity while deep cycling (i.e., draining the battery to near exhaustion).
By choosing a solution with optimal charging and capacity specifications, you’ll get more from your battery, and for longer. After tackling performance-related questions, focus on design. Now ask yourself:
3) What are my weight requirements?
Battery weight is important for several reasons, but it’s especially important when considering a solution for your vehicular application, such as a watercraft or plane. In these situations, the weight of your lithium batteries needs to be accounted for when calculating the weight of internal components and ensuring optimal balance.
Fortunately, lithium batteries are lighter than traditional, lead acid batteries. Still, when comparing different lithium options, pay close attention to heaviness. Choose the ideal weight to avoid balance issues.
4) What are my size requirements?
Finally, think about size. Make sure your application is able to house the battery you need based on the above factors: charge, capacity and weight. The last thing you want is to bring home a new battery with excellent performance, only to find it won’t fit.
This list just scratches the surface of considerations when customizing your lithium battery. To make the best purchasing decision possible, know your chosen application’s specifications and requirements inside and out before making a decision.