mwkeefer
1 MW
Hello all,
I have been using an EagleTree eLogger v3 since I began riding an eBike. The first unit I received worked flawlessly for about 5 months and then poof, one day it popped inductor L1 on the PCB (under the sticker) for no reason (nothing else attached to the USB bus was damaged). I chalked it up to ESD or somthing and ordered an immediate replacement, direct from EagleTree this time.
It took over 2 weeks to arrive and once it did I was super happy. I have been using it now for a mere week and a half and just moments ago while logging a charge of a 6S pack (yes 6S so low voltage, well under the 60-63v I normally run... I happened to be standing next to it (listening to a meanwell supply) and I heard a little poof (no smoke or smell) and my Live Mode software just went DING telling me it lost communications with the logger.
I pulled the logger off and removed all power. I connected it back to the USB bus and the indicator light comes on but steady glow no flashing to indicate USB mode.
So this is EagleTree #2 which has been damaged by USB and LiveMode use (the first one hadn't been used in live mode for the first 4.5 months)... leading me to believe there is an issue of some sort.
I should add that the port I use for the EagleTree is not the same as the first... I have modified a Linksys 4 port powered USB 2.0 hub and optically isolated 2 of the input channels (just a few opticouplers and some resistors really)... so there is absolutely ZERO possibility that this was USB power related, that supply is solid as a rock and again this isn't a total failure just no longer recognized by the USB bus... wondering if the Microprocessor underneath had something in it's USBUART blown?
In either case... for now, until this issue is resolved (since it seems to be reproducable) I would advise against Live Mode USB use of the Eagletree eLogger v3 - I am in contact with their technical support now.
-Mike
I have been using an EagleTree eLogger v3 since I began riding an eBike. The first unit I received worked flawlessly for about 5 months and then poof, one day it popped inductor L1 on the PCB (under the sticker) for no reason (nothing else attached to the USB bus was damaged). I chalked it up to ESD or somthing and ordered an immediate replacement, direct from EagleTree this time.
It took over 2 weeks to arrive and once it did I was super happy. I have been using it now for a mere week and a half and just moments ago while logging a charge of a 6S pack (yes 6S so low voltage, well under the 60-63v I normally run... I happened to be standing next to it (listening to a meanwell supply) and I heard a little poof (no smoke or smell) and my Live Mode software just went DING telling me it lost communications with the logger.
I pulled the logger off and removed all power. I connected it back to the USB bus and the indicator light comes on but steady glow no flashing to indicate USB mode.
So this is EagleTree #2 which has been damaged by USB and LiveMode use (the first one hadn't been used in live mode for the first 4.5 months)... leading me to believe there is an issue of some sort.
I should add that the port I use for the EagleTree is not the same as the first... I have modified a Linksys 4 port powered USB 2.0 hub and optically isolated 2 of the input channels (just a few opticouplers and some resistors really)... so there is absolutely ZERO possibility that this was USB power related, that supply is solid as a rock and again this isn't a total failure just no longer recognized by the USB bus... wondering if the Microprocessor underneath had something in it's USBUART blown?
In either case... for now, until this issue is resolved (since it seems to be reproducable) I would advise against Live Mode USB use of the Eagletree eLogger v3 - I am in contact with their technical support now.
-Mike
