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"Cam"
Veteran
Location: UK
| AceDude
| Quote |
| Too bad you failed to mention that in order to achieve the full output of the DUO you need a 15V or greater power supply. Not exactly easy when filed charging from a 12V car battery.
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I’m sure the Duo can put out 220W from a 12V supply. It can also run off 24V.
I have posted elsewhere what the outputs are at different input voltages.
Fenderstrat
Can the Cellpro 10 charge 12 cells? (Genuine question).
AceDude
HOW many fried batteries did that guy have! You’d think he’d learn the first time. I thought the response to that was sympathetic and professional.
My response would have been, “It says in the instructions DO NOT leave charging batteries unattended” SO… you sat there and watched them burn?
| Quote |
| Dear Herbert,
First, let me say that I am very sorry to see the damage to your batteries and charger, and I hope that no one was injured. We do work very hard to make the safest possible chargers, and we are deeply concerned about your case. I immediately forwarded your information to our engineers, and have asked them for a full review of all possibilities, and full retest of the charger series.
At this point we cannot be sure of anything, but it seems more likely that the pack contributed greatly or caused the problem entirely, given the early start of the fire and initial voltage levels, the excellent record of the chargers to date, and the fact that your charger has been working properly for some time before the fire.
Just for background in LiPo fires; we have seen in the past that a wiring or soldering problem can lead to a thermal runaway (particularly when physical cell damage also exists, such as from an impact), and certain kinds of damage to cells, either physical or related to charge/discharge history can greatly lower the voltage threshold at which thermal runaway occurs in a particular cell. No method of detecting such conditions has yet been invented, to my knowledge.
But I am NOT saying the charger is blameless at this point. We simply don't know enough to say for certain either way yet. We can only talk about probabilities for now, and need to do everything we can on our side to gather as much information as we can.
In any case, after the review is complete (2~4 weeks, I estimate) I will personally check and send to you replacements for both the charger and the batteries, regardless of final determination of cause.
And regardless of why it happened, I am sorry it did happen. I hope we can restore your faith in future.
Best Regards,
David
HP HK LTD
PS: Our 0610i are designed cooperatively between Japan and Korea, and manufactured in Korea.
It would have been nice to have Herb also note that Hyperion has replaced both the charger and two 5000mAh 25C 3S Thunderpower packs (with our VZ 4500 30C, as requested).
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^ All was apoligized for and the packs and charger were replaced.
That was also back in March 9th. It's now 6 months later and we're on firmware 1.7 and a team of us have been using about 20 balance chargers daily for almost a year now.
DSX9
Custom eRaptor 700 |
| 09-08-2008 11:03 AM | | | |
