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  1. T

    Noob needs help with Headway 24V20ah pack

    I expected to see around 3A current flowing from the charger into the battery when I hooked up the watt meter. This is the output stated on the front of the charger. It is new, it did come with the headway pack. I am measuring the charger voltage when it is unplugged from the pack. 3.22 6.44...
  2. T

    Noob needs help with Headway 24V20ah pack

    There is a small amount of current going to the battery. I'd guess this to be a trickle charge. It's been on the charger for 8 hours now and the watt meter reads 0.6ah into the battery.
  3. T

    Noob needs help with Headway 24V20ah pack

    I still haven't been able to get my charger working properly. After finding the adjustment pot that changed the green LED to red, I hoped that charger was working and current was flowing to the battery. To determine this, I ordered a watt meter which arrived yesterday. I hooked it up, with...
  4. T

    Noob needs help with Headway 24V20ah pack

    Yes, Michelle was very responsive while I was ordering the battery, but as soon as I had a problem the communication stopped. I got one message saying that she'd pass the problem on to her engineer, but I haven't heard anything since, even after numerous follow-ups from me. Needless to say...
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    Noob needs help with Headway 24V20ah pack

    I also tried connecting the old SLA battery (which is almost completely discharged) to the charger, but no luck. The light stayed green and never changed to red. Does anyone have any thoughts on what I should do next re: troubleshooting the charger? I'm still waiting for a response from...
  6. T

    Noob needs help with Headway 24V20ah pack

    I tried connecting the battery to the charger with both the discharge cable and the BMS cable. No change, the light stays green.
  7. T

    Noob needs help with Headway 24V20ah pack

    I got some time to work on my project and have made some progress. I thought auraslip's suggestion of bypassing the BMS during discharge was a good one, so I soldered a second negative lead from the battery to use while discharging the battery. I will look into getting a cell-log to monitor...
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    Noob needs help with Headway 24V20ah pack

    Yeah, I don't think there's anything actually wrong with the battery. I'm pretty sure made a mistake when I ordered it. I think that when I was asked what the 'working current' was, they meant the cut-off current. Since I replied with an answer of 20A, that's what the BMS cut-off is set to...
  9. T

    Noob needs help with Headway 24V20ah pack

    Good news to report: Yes, the BMS was the culprit. I connected the battery directly to the blade motor and it started right up. Quite powerfully, too, I'm happy to say. Seems like there's more 'oomph' in this battery compared to the old SLA, but that might just be my imagination. So I'm off...
  10. T

    Noob needs help with Headway 24V20ah pack

    Yep, that's right. I just have to bypass it, thanks.
  11. T

    Noob needs help with Headway 24V20ah pack

    Thanks, everyone, for the responses. I had a feeling the BMS wouldn't be adjustable. Do you know if there are any markings on the BMS that would indicate what the current is? That's interesting, I thought for sure the Headway's would be able to handle this application. Why do you think...
  12. T

    Noob needs help with Headway 24V20ah pack

    Hi, first timer here. I have a 24V cordless electric lawnmower and I wanted to upgrade it's battery from lead to LiFePO4 for increased range. I ordered a 24V20ah pack from 'Michelle at Headway', who quoted me a very good price for this pack size. I'm happy to say the transaction went smoothly...
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