Below illustrator show status of various size batteries put into the charger tank.
Please note this picture is a demo, not a actual charging situation.
All batteries are not included.
FAQ: What is different between V2299 smart charger and BC1HU
V2299 and BC1HU are both advanced Smart Charger, but V2299 has lower cost.
Smart Charger
V2299
BC1HU
Can it charger single cell?
No ( pair only)
Yes
Does it has discharging function?
No
Yes
Which one is charging faster?
same
same
Which one has lower cost ?
Lower
higher
Suggestion: If you don't need to charge single cell and discharge batteries (in most cases a necessity for the NiCd type), you can use V2299 instead of BC1HU.