RayGo, you rock man! So yea, I did make the change, from 500 watts, apparently the factory default, to 350 watts, the rating of my T350 PSU. It helped - I was able to get to 23 minutes of balance charging before **ERROR** snuck-up on me. 2x**GRRRRR**+1*Freaked+5xWhatTheFrack!!!! Anyway, its a new record, a whole 23 minutes of balance charging and in fact, my celllogs show me a better balance between cells, so its progress in the right direction.RayGo said:
So lower it to 300W and you probably won't get an error ever again. Or get a bigger psu.arkmundi said:
OK, did that, 300W and still get the **ERROR**. I bought the T1220 and T350 PSU at the same time from the same vendor with the explicit question: "What's a good compatible PSU for the T1220?" And they said, then sold me the T350. If its the PSU, back it goes for an exchange. What wattage PSU do you suggest? Thanks.wesnewell said:
Good idea, so:Mark said:
Its a 350 watt power supply - it can deliver. I don't think its the PSU. I believe its the T1220, or its internal algorithm, that's reporting an error in the power supply when there is none. I've exhausted the topic here at ES. All you good people have been informative and helpful. When I posted for help, I thought it was me, some noob thing, not getting the setup right. That was partly true, as the above will atest. But now its up to the vendor who sold me this product to decide what's wrong and what to do. Thanks again, all.999zip999 said:
arkmundi said:
I've got my multimeter wired into the PSU output and can watch the voltage throughout the process. The wires and connections are all good. After "Start", the charger begins the CHG/BLC process and shows it amping up to the 3.0 amp limit set. There's a corresponding slight drop in the PSU voltage from 15.5 to around 15.4. Then **ERROR** and the charger stops charging and voltage goes back towards 15.5. There is no indication of a "voltage spike", but thanks for the suggestion.dnmun said:
I'm on the low end here in arkmundiland. Don't have such. Are you suggesting that the T350 may be a poor quality PSU and that with a better PSU it wouldn't trigger the charger's **ERROR** algorithm? Suggesting also that zipman's suggestion of using a car battery would in fact eliminate the charger as the culprit and finger the PSU?dnmun said:
Yea, I'm at the point where speculation isn't going to help. Appreciated the explanation of what's on the inside of the packaging though. Need the vendor to own the problem and provide assistance - either replacements or suggestions that will make **ERROR** go away, so I can get on with life in the pleasant lane. I've opened a support ticket, so that's in process...dnmun said:
I'm not complaining at all, about the vendor, the good people here at ES, or even about the Thunder 1220. Its too early to complain - all this is new, new to me and new equipment. I'm in an information gathering phase, to access what's going on. I opened a ticket with vendor, because there is some significant expertise there - they are apparently the number seller of the Thunder 1220 and provide "support" for their products, through an online ticketing process. I have yet to get their opinion. Until I do, I'm suggesting hitting the "pause" button on this dialog. Yes, there are options to follow-through on, in diagnosing and eliminating the **ERROR**, including the ones you suggest. I'm just not ready to pursue them yet. Many thanks, however. I'll be baaacckkk!speedmd said:
Since I rewired the main battery cables both chargers seem to work better. My trike is down for repairs and refitting so I won't know till next week if they still charge OK. The Thunder is much more stabile than the Hyperion.999zip999 said:
I don't have a "balance board" if you mean a BMS, having chosen the NO-BMS route. I bought a "balance extension cable" from RC supply, kind that has 7 JST-XH Connectors for 6S, perfectly matched to the chargers balance leads. I cut male ends off the end and used the agniusm hex bolts to secure to the battery as a balance harness. I use Anderson powerpoles for the main battery connection. For the main charger cable, I cut the bullet connectors off and soldered Andersons on in place, so its a bullet connector on the charger side and Anderson on the battery side. All wiring was voltage and current checked. Nothing is loose.speedmd said:
Ahhh, someone with the A123 AMP20's using the Thunder 1220 for balancing that has experienced the **ERROR**. So, the amperage draw on the PSU, based on the amperage rate set to charge the battery, can somehow trigger it. It seems to confirm my suspicion that the hardware/firmware circuit meant to "protect the car battery" from being emptied is trigger happy.docnjoj said:
