fogstar drift 230ah not holding charge

[DP]

I recently purchased the Fogstar drift 230, and put it to charge using a Noco Genius 5amp charger on the lithium battery setting. At the start the fogstar app showed the battery was 25% charged and would need 35 hours to charge. After this time the app showed 100% charge. When I removed the charger and tested the voltage on the battery, the voltage dropped to 2volts.
I later put the charger back on, even though the app was showing 100% charge. It charged for a short time before stopping. I tested the voltage, it was 6 volts.
any advice please?

 

[Guigsy]

The charge values are not accurate until it's fully charged, but regardless, it shouldn't be discharged.

Have you switched both the charge and discharge activation switches on?

 

[Otter Spotter]

Get yourself a better charger, 5amps is way to low, should consider 30amp charger, to speed things up. I cannot your your original query though.

 

[DP]

Guigsy they were both on when it was charging. But I've never been able to switch them on or off through the app​

 

[Gaston aires]

On the Fogstar app both charging and discharging needs to be on.
Phil

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[Jev88]

Image to assist as I was just playing with my Fogstar app.

Charging and Discharging switches?

 

[DP]

Yep

 

[Ditcha]

I recently purchased the Fogstar drift 230, and put it to charge using a Noco Genius 5amp charger on the lithium battery setting. At the start the fogstar app showed the battery was 25% charged and would need 35 hours to charge. After this time the app showed 100% charge. When I removed the charger and tested the voltage on the battery, the voltage dropped to 2volts.
I later put the charger back on, even though the app was showing 100% charge. It charged for a short time before stopping. I tested the voltage, it was 6 volts.
any advice please?

I would try a load on the battery the bms is showing 13.6v in the app sometimes the bms goes into sleep mode so when you check the terminals you find very little voltage, I had this on a bike battery I recently bought I fully charged it when I checked the voltage it showed 2v put it on the bike and its been fine.

 

[Pausim]

A few lithium battery manufacturers have started including a sleep mode which activates if the battery thinks it is not being used. If Fogstar have this feature you need to ask them how to disable it. At least one of the major battery retailers will not stock batteries with this feature because it causes problems when used for leisure and back up applications. LiFePO4 batteries have very low self discharge rates and do not need this protection.

 

[Pausim]

Duplicate.

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