4/6/2023 0 Comments Battery pulse conditioning![]() ![]() The first is using the + and - keys as both inputs and outputs. The biggest obstacle to the full automation with the W1209 board is the need for an additional two digital outputs. A temperature controlled testing environment would be useful to remove another source of potential error but that is beyond my reach at present. The temperature change could be influencing the results either directly via battery chemistry somehow, or indirectly by it's impact on the voltage regulator which serves at the voltage reference for hte D2A conversion. We are moving towards summer and the average ambient temperatures have increased over the last month. The final obvious shortcoming is temperature. I clearly need to automate the cycle and let it run unattended. ![]() So the time between measurements is not constant and the level of charge and discharge varies from one cycle to the next. I still have to manually changeover the battery at each step of the pulse, charge, measure cycle. If the static load battery showed little, or no improvement, in internal resistance then there would be much stronger support for the pulse conditioning approach.Īnother drawback stems from the lack of automation. With a second battery I could cycle one on the pulse conditioner whilst the other was cycled on a static load. The biggest drawback to the approach is the lack of a control battery. However, there are several issues with the approach and the results cannot be construed as anything other than weak support for pulse conditioners. So my initial observations are that the pulse conditioner is beneficial. Now it runs for 5 to 6 days before I have to recharge the battery. At the start I was recharging the battery after 3 days on the pulse conditioner. ![]() ![]() While the reduction in the internal resistance tapered off after about 10 days, there is some support for the battery's capacity having increased as well. Over this time the measured internal resistance has fallen from 264 milli-ohms to 175 milli-ohms. More importantly, the need for a more rigorous approach has become apparent. If you do not allow these cookies, you will experience reduced relevant content.It's been about 4 weeks now and some observations of the impact pulse conditioning has had on internal resistance and perhaps battery capacity are warranted. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. They may be used by Analog Devices to build a profile of your interests and show you relevant content on our site. Targeting Cookies: These cookies may be set through our site by Analog Devices and our service providers. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance. All information these cookies collect is aggregated and therefore anonymous. They help us to know which pages are the most and least popular and see how visitors move around the site. Performance Cookies: These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. If you do not allow these cookies then some or all of these services may not function properly. They may be set by us or by third party providers whose services we have added to our pages. Functional Cookies: These cookies enable the website to provide enhanced functionality and personalization. These cookies do not store any personally identifiable information. You can set your browser to block or alert you about these cookies, but some parts of the site will not then work. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. Strictly Necessary Cookies: (Always Active) These cookies are necessary for the website to function and cannot be switched off in our systems. After we finish updating our website, you will be able to set your cookie preferences. Analog Devices is in the process of updating our website. ![]()
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