January 30, 20242 yr Good day. Apparently my 24v nenergy battery has depleted completely and now i cant seem to find a place to give it a jump start... Any suggestions perhaps 🥺
January 30, 20242 yr 12 minutes ago, jcs said: Good day. Apparently my 24v nenergy battery has depleted completely and now i cant seem to find a place to give it a jump start... Any suggestions perhaps 🥺 You will need a 24v power supply with current limit function then connect it to the output terminals so that the bms can reset the low voltage cut off, one or more cells is below the low threshold value. Most probably <2.5V. As soon as their is current draw from the power supply you know the bms has reset the lvc then use your inverter to charge.
January 30, 20242 yr Author 5 minutes ago, TaliaB said: You will need a 24v power supply with current limit function then connect it to the output terminals so that the bms can reset the low voltage cut off, one or more cells is below the low threshold value. Most probably <2.5V. As soon as their is current draw from the power supply you know the bms has reset the lvc then use your inverter to charge. Regarding current limit function, would i need to set it? And where would i be able to find such a power supply?
January 30, 20242 yr 22 minutes ago, jcs said: Regarding current limit function, would i need to set it? And where would i be able to find such a power supply? Yes i would set the current limit to 10 amps, as when the bms resets it will draw quite a lot of current. I got one from Electromann SA 60 volts 10 amps for around 1.6k beginning of 2023.
January 30, 20242 yr This will also do 60V 5A bit more expensive than what i paid. https://electromannsa.co.za/shop-the-latest-affordable-gadgets-online/wanptek-nps605w-0-60v-dc-0-5a-300w-adjustable-digital-dc-power-supply-2/?gclid=Cj0KCQiA2eKtBhDcARIsAEGTG42bBcgaani2c-KQg5BHqjnk-Kt0cJuV_LUHIdPUiYNb-U8witzCnCMaAm-EEALw_wcB
January 30, 20242 yr I don't know if this boils down to the same scenario. When my Li alarm battery "died", the bms shut down due to being over dischaged. To get the dead battery alive again, I paraled another battery with it and connected a battery charger. After a couple of minutes I removed the spare battery and the charger continued to charge the deab battery. This just to fool the bms to wake up. I hope it works for you too. Edited January 30, 20242 yr by Vaal
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