![]() Battery Supporting Systemsįor the customer who desires to improve the performance of battery banks. The charging system employs pulse technology that ensures that the battery is maintained in a charged state, fully capable to be started as needed. Charging Systemsįor the customer who desires to maintain batteries in a charged condition during mid and long term storage LTi provides two types of Battery Charging Systems. The conditioning system employs pulse technology that ensures that the battery is maintained in a ready "to be charged" state. Conditioning Systemsįor the customer who desires to maintain batteries in a ready "to be charged" condition during mid and long term storage, LTi provides two types of Battery Conditioning Systems. All systems are capable at outdoor applications (solar power) or indoor applications (120VAC/1PH/60Cycle). Batteries that are included in these systems will be maintained in a fully charged state or a ready to be charged state depending on the customers needs. The purpose of the systems is to provide the customer with a cost-effective method of maintaining batteries during mid and long term storage. I'm leaning towards the first approach since I don't know if I have a 4017 in the drawer and the first approach avoids any ambiguity over which step the cycle is in.LOGIS-TECH (LTi) incorporates a Battery Preservation System (BPS™) as a component of its Medium and Long Term Storage Programs. Then each of the decoded outputs for 1-3 from the 4017 driving a relay to perform each step of the pulse charge measure cycle. The second approach is a 4017 counter clocked by the pin driving the relay. That would require some careful soldering to insert a resistor, say 2k, in series with each switch. 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. 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.
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