Post by subman631 on May 13, 2019 13:28:01 GMT
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Oct 14, 2018 2:02:49 GMT -5 Admin said:
The Rover MPPT charge controller has a reactivation feature to awaken a sleeping lithium battery. The protection circuit of lithium battery will typically turn the battery off and make it unusable if over-discharged. This can happen when storing a lithium battery pack in a discharged state for any length of time as self-discharge would gradually deplete the remaining charge. Without the wake-up feature to reactivate and recharge batteries, these batteries would
become unserviceable and the packs would be discarded. The Rover will apply a small charge current to activate the protection circuit and if a correct cell voltage can be reached, it starts a normal charge.
-Renogy Team
Has anyone actually tried this??? How do you apply a small charge current across an OPEN CIRCUIT? I have 3 100 ah Renogy batteries that shut off at the 10v mark, apparently. Open circuit. I have a $600 Morningstar 60 amp controller now but I see the Rover only goes up to 40 amps and will fry if I would use it.
I see that there are Lithium battery chargers that have a feature to 'save' batteries. Optimate makes them > smile.amazon.com/Tecmate-TM-291-Lithium-Battery-Maintainer/dp/B00AHG7O74/ref=sr_1_4?crid=WWTD3UJCXTHA&keywords=optimate+lithium+battery+charger&qid=1557751767&s=automotive&sprefix=optimate%2Cautomotive%2C1687&sr=1-4
Has anyone tried these? All brands of ready made 12V LiFePO4 batteries have BMS's. Why is it so difficult to reset them? It should be a simple procedure to reset them. In fact, BattleBorn says that theirs resets automatically.
Oct 14, 2018 2:02:49 GMT -5 Admin said:
The Rover MPPT charge controller has a reactivation feature to awaken a sleeping lithium battery. The protection circuit of lithium battery will typically turn the battery off and make it unusable if over-discharged. This can happen when storing a lithium battery pack in a discharged state for any length of time as self-discharge would gradually deplete the remaining charge. Without the wake-up feature to reactivate and recharge batteries, these batteries would
become unserviceable and the packs would be discarded. The Rover will apply a small charge current to activate the protection circuit and if a correct cell voltage can be reached, it starts a normal charge.
-Renogy Team
Has anyone actually tried this??? How do you apply a small charge current across an OPEN CIRCUIT? I have 3 100 ah Renogy batteries that shut off at the 10v mark, apparently. Open circuit. I have a $600 Morningstar 60 amp controller now but I see the Rover only goes up to 40 amps and will fry if I would use it.
I see that there are Lithium battery chargers that have a feature to 'save' batteries. Optimate makes them > smile.amazon.com/Tecmate-TM-291-Lithium-Battery-Maintainer/dp/B00AHG7O74/ref=sr_1_4?crid=WWTD3UJCXTHA&keywords=optimate+lithium+battery+charger&qid=1557751767&s=automotive&sprefix=optimate%2Cautomotive%2C1687&sr=1-4
Has anyone tried these? All brands of ready made 12V LiFePO4 batteries have BMS's. Why is it so difficult to reset them? It should be a simple procedure to reset them. In fact, BattleBorn says that theirs resets automatically.
