Count me in for 1 please
Actually, BlueSwordM seems to have a good idea of what he’s doing. The only thing it’s “fallen victim” to is delays, which are understandable given that he’s largely doing the project alone (and also had a recent injury).
Never did this. I push the negative terminal back with the battery (Lii-500).
I’d be interested too - but it has to be better than the Opus BT-C3100. which does most of what people want for a good price as it is. I don’t mind spending a little bit more for some ‘Pro’ features and a very high quality build.
I know it says feature list is locked - but:
- Sometimes when cells are very depleted, they are not recognised. If there were a way to force a charge to start at a particular voltage to get the charging started (apologies if this is already on the list and I didn’t understand)
- Nice color OLED screen with info
- USB connected to download data - but also crucially, to update firmware with new features and bug fixes
- Ability to run custom sequence of programs. I.E. run an internal resistance test, charge/discharge battery 3 times while taking resistance test and record battery capacity between each charge. Output data. If it could store extra data during the whole charge/discharge process - all the better - this can be exported and graphed externally.
- Easy serviceability - particularly the fan. Dont solder onto board, and don’t use some weird-ass sized fan you can’t find anywhere (looking at your Opus!). If it were a ‘silent’ fan - that would be a bonus!
- For internal resistance, give a warning if the battery voltage is too low to give an accurate measurement. Take several measurements, and give an average, or mean value.
As a power user I tend to dislike mommy chargers. Just do what I command and STFU. But of course I take care.
In case of need setting an over-discharged cell in parallel with a healthy one using some (thin) wires (a few touches here and there) is a solution.
Concerning the internal resistance measurements, depending on how that is implemented a too high voltage warning may also be wise. Certain chargers like the popular Lii-500 measure internal resistance by injecting a given current into the rail and substracting the no-load rail voltage to the measured rail voltage while the current is flowing, then dividing the difference by the current (dV/I). However, since rail voltage cannot go above maximum charge voltage, if a cell is close enough to maximum charge voltage the resistance measurement is invalid because rail voltage maxes out. Chargers which operate in such a way should warn whenever rail voltage reaches maximum charge voltage upon cell IR measurement.
In any case, I hope this charger implements cell voltage monitoring right at the cell terminals.
Interested for one
Interested in one
hi…
I wonder if you could add the function or feature to your proposed charger to test for AC Internal Resistance (IR, in micro Ohms) accurately (like Xtar VP4 Plus, but it only test DC IR), with the accuracy of the YR-1030 tester? I would like to get a nice charger with an accurate AC IR testing function without buying the YR-1030 tester separately.
Thanks. 
Interested in one
Thank You for pulling this offer together. …I would like a charger/dis-charger functions for cell going into storage (~3.8V Li-Ion / ~3.3V LiFePO4), also let charge ‘top-off’ be user settable by 0.1V or even 0.05V increments? Count me in for 2 charger/dischargers either way.
I’ll have one too.
If you can make it to pull power from USB PD PSU it will make it even better.
Sign me up for 1 of these chargers please.
Guys, am I right this topic is for more than half a year “on hold”?
Should I get rid of the rest of my hope?
Interested. 
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It’s nice to see this project still “alive”……
Looks like this one’s dead - please take me off the list.
I’m not managing the list, but what good does it do to be taken off the list? The list just provides you a place in line for if and when a project does become available; you promise nothing. Even if a project has a 1% chance of making it into production, wouldn’t you want the option to participate in a group buy if it beats those odds? 
IIRC, the BLF LT1 took 3 years to go into production, but the people who got onto the list early got their lantern months before most people did.
If you honestly have no interest in purchasing the item then it is polite to remove your name from the list; otherwise, leave your name on and be surprised when the product somehow, eventually goes live .
I’m interested if this ever materialises.