How to charge a dead liFePo

[Kcdaniels]

I have a new 200 amp hour battery that I drained down to 0 volts ...accidentally lol..I do not have a charger for it other than a regular battery charger for lead acid....can I "wake" up the bms with the lead acid charger ?...Without damage ?
I was going to recharge using my solar Victron charge controller but with 0 voltage that seems out now?

 

[Mattb4]

Is your lead acid battery charger one of the old transformer based? If so it can be used to wake up the BMS by using it for a few minutes. The new smart chargers may not recognize there is a battery needing to be charged.

 

[Kcdaniels]

Is your lead acid battery charger one of the old transformer based? If so it can be used to wake up the BMS by using it for a few minutes. The new smart chargers may not recognize there is a battery needing to be charged.

Thank you...its a older one but don't know if its transformer or not...but will try it for a few minutes and see

 

[Kcdaniels]

Thank you...its a older one but don't know if its transformer or not...but will try it for a few minutes and see

Is your lead acid battery charger one of the old transformer based? If so it can be used to wake up the BMS by using it for a few minutes. The new smart chargers may not recognize there is a battery needing to be charged.

Well guess I don't have the older style charger.. Want wake it up.

 

[OffgridMatty]

I use this one. It has worked great for me.

EG4 Battery Charger | 24V 30A

Signature Solar provides solar panels, off-grid solar systems, grid-tie, and hybrid systems. Quality solar inverters, bifacial solar panels, complete solar kits, solar batteries. Featuring brands such as EG4 Electronics with their solar battery, LifePower4 and EG4 LLifePower4 and EG4 LL

signaturesolar.com

 

[DJSmiley]

Do you have a jump starter? a power supply? something else which can provide 12V? Should be sufficient to wake the BMS.

To limit the current (it might start charging) just add a 5-10ohm resistor in series. Even a halogen bulb would work, since you only need to wakeup the BMS.

 

[OzSolar]

I have a 0-60v, 5amp power supply and I think they should be standard equipment for anyone using batteries with a BMS.

 

[Kcdaniels]

Well guess I don't have the older style charger.. Want wake it up.

Ok found one that is older style... Woke it right up ?
Thank for the help guys

 

[Mattb4]

I have a 0-60v, 5amp power supply and I think they should be standard equipment for anyone using batteries with a BMS.

I went out and got a cheap one after buying my first liFePO4 battery just in case the BMS tripped on low voltage. It may never see use. I understand that some of the LiFePO4 chargers do have a BMS activation feature.