T-ster

I was discharging a 2 cell 2300mah A123 battery using an old Cirrus charger. It discharged the cells to 5.2V. When I hooked up my CellPro Multi 4, it gave me a Low Voltage Restore message and the low cell was 2.6V. I thought A123's could be safely discharged to 2.0V per cell.

It charged the cells and put 2200 milliamps into the pack.

Is there a chance I did any damage to the pack?

Trevor

SitNFly

My Feedback: (54)

Unless the Cirrus charger does A123, it probably thought it was a 5 cell Ni** battery and discharged it down to what it thought was around 1.1 volts per cell. Don't know why the Multi 4 complained. A123's can be discharged to 2 volts per cell and still have a long life. I don't take mine that far because I would be deadsticking all the time. This is with an electric power pack.

T-ster

The Cirrus CyclePro doesn't do A123's. I had to set it for a 5 cell NiMH pack, just like you guessed. The manual for the Multi4 says you get the message for 0 - 2.0v for A123's or for .5 - 2.7v for LiPO's.

I did have it set on the A123 setting though.

tacx

My Feedback: (1)

I'm confused. If as you said your charger does not do A123s, then how could you set it for A123s?

T-ster

Sorry, should have been more specific in my original post. The CellPro Multi4 charger can charge A123's, but it cannot discharge them. I was using the Cirrus (which has no A123 setting) to discharge only. I would then switch it to my Multi 4 to charge the pack.