Timeline for Battery Charging - Electrical Model
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Jan 16, 2013 at 21:26 | comment | added | supercat | It's also important to note that with some battery chemistries, the proper "float" voltage may vary depending upon temperature and other factors; trying to charge a battery pack to a voltage higher than its natural float voltage may severely damage it (likely pushing its natural float voltage even lower!), and trying to charge a battery pack to a voltage lower than its natural float voltage leave much of its capacity unutilized. | |
| Jan 16, 2013 at 19:01 | comment | added | Olin Lathrop | @Hike: I agree. There are lots of different batteries that need to be treated differently. You can get aways with fixed voltage and current limits for lead-acid most of the time. Even then, for a really low lead-acid battery you want to charge with low current until the voltage builds up to a minimum level, then go to the fixed voltage/current limit regime. | |
| Jan 16, 2013 at 18:57 | comment | added | HikeOnPast | @Olin: Many of the VRLA monoblocks I've used in the past have a lower max voltage under constant current charge, and don't allow going to the higher constant "finish" voltage until the current has tapered below a certain threshold. For these batteries, the voltage- and current-limited supply approach can shorten battery life if the "finish" voltage is used as a limit for the constant current phase. The datasheet is king. | |
| Jan 16, 2013 at 18:53 | comment | added | vicatcu | I think it (CC/CV) applies to Lithium chemistries as well from what I've read... | |
| Jan 16, 2013 at 18:50 | history | answered | Olin Lathrop | CC BY-SA 3.0 |