I had pretty much taken my lithiums down to almost dead, but hooked up another 12v battery to them for 10 15 mins. They woke up almost instantly. I let them charge for a bit with the supplementary battery connected then removed. Idle mode went off and system started recharging itself again :-)
Hi John, the reviving process is a wake-up pulse from the battery charger itself. When the BMS inside the battery sees this pulse it causes the BMS to turn like a light switch and start accepting charge. BMPRO lithium battery chargers allow to wake up a battery from a sleep mode.
My lithium battery recently went below 5v which triggered this BMS 'sleep mode' safe guard....My charger wouldn't recognise the low voltage refusing to charge....a check with multi meter showed 4.9v....I found a post showing how to do this without a specialised tool/charger....It was really simple to do.... just get another fully charged battery with the exact same specs and connect to the sleeping battery in 'parallel'......let it feed the dead battery for around 10 - 15 mins checking V periodically with a multi meter...I got the sleeping battery to 5v to 12v in 15mins....once you get it back above 10v try the charger again it should start charging as normal.....saved me $500 + and worked perfectly....I also recommend leaving on charger a few days for maximum recharge...I only got to 13.2v on a full charge cycle but after a day or so on the charger it was back to 14.4v.
You can wake up a dormant/sleeping lithium battery by getting another battery, with exact same specs, and connect to sleeping battery in parallel for 15 min or so...use a multi meter to check its above 10v....this will put enough voltage back into the battery so your charger will recognise it and start the charge process like normal....once fully charged leave on float for a few days this will get your battery to max capacity.
My lithium battery recently went below 5v which triggered this BMS 'sleep mode' safe guard....My charger wouldn't recognise the low voltage refusing to charge....a check with multi meter showed 4.9v....I found a post showing how to do this without a specialised tool/charger....It was really simple to do.... just get another fully charged battery with the exact same specs and connect to the sleeping battery in 'parallel'......let it feed the dead battery for around 10 - 15 mins checking V periodically with a multi meter...I got the sleeping battery to 5v to 12v in 15mins....once you get it back above 10v try the charger again it should start charging as normal.....saved me $500 + and worked perfectly....I also recommend leaving on charger a few days for maximum recharge...I only got to 13.2v on a full charge cycle but after a day or so on the charger it was back to 14.4v.
I have a 12vdc 12ah lithium battery that is DEAD !! only a couple years old. I use for my auto gate opener. I can not get it to WAKE UP !! connected to another 12vdc in Parallel. With volt meter both read 12.75vdc. dis connect the batts and my lithium batt. still will not take a charge using charger for lithium batts.. WHATS WRONG ???
Can any body let me know what equipment I need to use when my battery cells are at different charge so I can bring them all to 0 so they can charge all back equally
The title should be “how to revive a BMPro battery - you don’t it does it itself” No information on most batteries just this one brand. The title is too general.
My lithium battery recently went below 5v which triggered this BMS 'sleep mode' safe guard....My charger wouldn't recognise the low voltage refusing to charge....a check with multi meter showed 4.9v....I found a post showing how to do this without a specialised tool/charger....It was really simple to do.... just get another fully charged battery with the exact same specs and connect to the sleeping battery in 'parallel'......let it feed the dead battery for around 10 - 15 mins checking V periodically with a multi meter...I got the sleeping battery to 5v to 12v in 15mins....once you get it back above 10v try the charger again it should start charging as normal.....saved me $500 + and worked perfectly....I also recommend leaving on charger a few days for maximum recharge...I only got to 13.2v on a full charge cycle but after a day or so on the charger it was back to 14.4v.
Seems like you might be having a similar issue to me, or at least the same timing. I found this video after trying to get my ebike going today after a few months of not using during winter.
Power supply mode in some battery chargers, such as BMPRO BatteryCharge15, allows to wake up the battery from the sleep mode. However, we are talking LiFePO4 batteries only.
My lithium battery recently went below 5v which triggered this BMS 'sleep mode' safe guard....My charger wouldn't recognise the low voltage refusing to charge....a check with multi meter showed 4.9v....I found a post showing how to do this without a specialised tool/charger....It was really simple to do.... just get another fully charged battery with the exact same specs and connect to the sleeping battery in 'parallel'......let it feed the dead battery for around 10 - 15 mins checking V periodically with a multi meter...I got the sleeping battery to 5v to 12v in 15mins....once you get it back above 10v try the charger again it should start charging as normal.....saved me $500 + and worked perfectly....I also recommend leaving on charger a few days for maximum recharge...I only got to 13.2v on a full charge cycle but after a day or so on the charger it was back to 14.4v.
@@BMPROau If I have two 12 volt LifePO4 batteries in series that are in sleep mode, can jump with 24 volt power source across both of them or do I have to jump each one with a 12 volt power source.
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I had pretty much taken my lithiums down to almost dead, but hooked up another 12v battery to them for 10 15 mins. They woke up almost instantly. I let them charge for a bit with the supplementary battery connected then removed. Idle mode went off and system started recharging itself again :-)
This tells you absolutely nothing about reviving a battery from sleep mode. Useless video.
Thanks for saving my time
Hi John, the reviving process is a wake-up pulse from the battery charger itself. When the BMS inside the battery sees this pulse it causes the BMS to turn like a light switch and start accepting charge. BMPRO lithium battery chargers allow to wake up a battery from a sleep mode.
My lithium battery recently went below 5v which triggered this BMS 'sleep mode' safe guard....My charger wouldn't recognise the low voltage refusing to charge....a check with multi meter showed 4.9v....I found a post showing how to do this without a specialised tool/charger....It was really simple to do.... just get another fully charged battery with the exact same specs and connect to the sleeping battery in 'parallel'......let it feed the dead battery for around 10 - 15 mins checking V periodically with a multi meter...I got the sleeping battery to 5v to 12v in 15mins....once you get it back above 10v try the charger again it should start charging as normal.....saved me $500 + and worked perfectly....I also recommend leaving on charger a few days for maximum recharge...I only got to 13.2v on a full charge cycle but after a day or so on the charger it was back to 14.4v.
So the 'way' for us to wake up.our batteries is to buy your charger. Thats very educational thanks 👍
You can wake up a dormant/sleeping lithium battery by getting another battery, with exact same specs, and connect to sleeping battery in parallel for 15 min or so...use a multi meter to check its above 10v....this will put enough voltage back into the battery so your charger will recognise it and start the charge process like normal....once fully charged leave on float for a few days this will get your battery to max capacity.
@@thelonewolf666 I had 2 batteries but no jump pack....most people will have no jump pack but access to another battery..
I can confirm this I just did this 2 minutes ago
So you need to connect the same voltage that is in the battery? Can I just use the voltage from the charger that comes with the battery?
My lithium battery recently went below 5v which triggered this BMS 'sleep mode' safe guard....My charger wouldn't recognise the low voltage refusing to charge....a check with multi meter showed 4.9v....I found a post showing how to do this without a specialised tool/charger....It was really simple to do.... just get another fully charged battery with the exact same specs and connect to the sleeping battery in 'parallel'......let it feed the dead battery for around 10 - 15 mins checking V periodically with a multi meter...I got the sleeping battery to 5v to 12v in 15mins....once you get it back above 10v try the charger again it should start charging as normal.....saved me $500 + and worked perfectly....I also recommend leaving on charger a few days for maximum recharge...I only got to 13.2v on a full charge cycle but after a day or so on the charger it was back to 14.4v.
I have a Bms of lithium battery and it's locked how to operate the battery again because it isn't working at all
I have a 12vdc 12ah lithium battery that is DEAD !! only a couple years old. I use for my auto gate opener. I can not get it to WAKE UP !! connected to another 12vdc in Parallel. With volt meter both read 12.75vdc. dis connect the batts and my lithium batt. still will not take a charge using charger for lithium batts.. WHATS WRONG ???
Can any body let me know what equipment I need to use when my battery cells are at different charge so I can bring them all to 0 so they can charge all back equally
Wakeup a 12v with a 12v lead battery. Wakeup a 48v lithium with a lead acid 48v pack
Great vid
Glad you have liked it, Denis!
The title should be “how to revive a BMPro battery - you don’t it does it itself”
No information on most batteries just this one brand. The title is too general.
Thank you for your comment, Marley, we've renamed the video to get it more clear.
My lithium battery recently went below 5v which triggered this BMS 'sleep mode' safe guard....My charger wouldn't recognise the low voltage refusing to charge....a check with multi meter showed 4.9v....I found a post showing how to do this without a specialised tool/charger....It was really simple to do.... just get another fully charged battery with the exact same specs and connect to the sleeping battery in 'parallel'......let it feed the dead battery for around 10 - 15 mins checking V periodically with a multi meter...I got the sleeping battery to 5v to 12v in 15mins....once you get it back above 10v try the charger again it should start charging as normal.....saved me $500 + and worked perfectly....I also recommend leaving on charger a few days for maximum recharge...I only got to 13.2v on a full charge cycle but after a day or so on the charger it was back to 14.4v.
So... there is no "HOW" to... because there is no 'Doing' of anything, as it's all automatic. Kinda makes the video title a bit redundant really.
Seems like you might be having a similar issue to me, or at least the same timing. I found this video after trying to get my ebike going today after a few months of not using during winter.
Power supply mode in some battery chargers, such as BMPRO BatteryCharge15, allows to wake up the battery from the sleep mode. However, we are talking LiFePO4 batteries only.
I like how they replied to this comment and still didn’t bother to offer useful information
My lithium battery recently went below 5v which triggered this BMS 'sleep mode' safe guard....My charger wouldn't recognise the low voltage refusing to charge....a check with multi meter showed 4.9v....I found a post showing how to do this without a specialised tool/charger....It was really simple to do.... just get another fully charged battery with the exact same specs and connect to the sleeping battery in 'parallel'......let it feed the dead battery for around 10 - 15 mins checking V periodically with a multi meter...I got the sleeping battery to 5v to 12v in 15mins....once you get it back above 10v try the charger again it should start charging as normal.....saved me $500 + and worked perfectly....I also recommend leaving on charger a few days for maximum recharge...I only got to 13.2v on a full charge cycle but after a day or so on the charger it was back to 14.4v.
@@BMPROau If I have two 12 volt LifePO4 batteries in series that are in sleep mode, can jump with 24 volt power source across both of them or do I have to jump each one with a 12 volt power source.
???
You say nothing but tu buy your charger.