The box shown... is like the one KSD uses but I also know that it has been faked also... so that is no real indication of brand. This is one reason I don't buy this type of product from fasttech
About the 5a limit... that is what it claims and perhaps it does have an upgraded circuit board... I won't guess either way.
About the performance drop... that is pretty standard really. I've seen it also on several APV's and I suspect it's a lot more of an indication of the ability of battery to handle a load as it's power drops down as it is of the circuit trying to boost it. Basically, the circuit can not make up for what the battery can't provide.
I usually have an extra battery that I keep charged and once the power drops to around 3.8-3.9v I change them out if possible. It's easier on the battery that way, so they will live longer. Recently, I've been running two APV's... so now I don't have an extra already charged battery.
I've got two 35a Efest 18650's on the way in... ( that's 35a burst and 20a continuous so I've read ) these shouldn't "sag" as much as my current batteries do when reaching lower voltages.
About the 5a limit... that is what it claims and perhaps it does have an upgraded circuit board... I won't guess either way.
About the performance drop... that is pretty standard really. I've seen it also on several APV's and I suspect it's a lot more of an indication of the ability of battery to handle a load as it's power drops down as it is of the circuit trying to boost it. Basically, the circuit can not make up for what the battery can't provide.
I usually have an extra battery that I keep charged and once the power drops to around 3.8-3.9v I change them out if possible. It's easier on the battery that way, so they will live longer. Recently, I've been running two APV's... so now I don't have an extra already charged battery.
I've got two 35a Efest 18650's on the way in... ( that's 35a burst and 20a continuous so I've read ) these shouldn't "sag" as much as my current batteries do when reaching lower voltages.



