Not all Chargers are equally
created
Q. What is the regular battery charger?
Q. What does NEXcell "Smart Charger"
do?
Q. What is supplement charge?
Q. What is trickle charge?
Q. What is "Sleep and Wake-up Mode"?
Q. How do I calculate the batteries charging time?
Q. Do you have 1 hour "Smart Fast Charger"?
Q. Why NEXcell "Smart Charger"
has conditioning feature?
Q. How often should I condition my batteries?
Q. Can I use NEXcell "Smart Charger"
to charge NiCd batteries?
Q. What is the regular battery charger?
A. Regular (cheap) chargers apply a set charge rate and then shut off
with a timer. A modern high capacity battery may not have received a full
charge before the timer shut off. On the other hand, the partially discharged
batteries may be overcharged when they receive the same timed charge.
Also if there is a power interruption during charge, the timer will start
over and could result in overcharging.
Q. What does NEXcell "Smart Charger"
do?
A. NEXcell "Smart Charger" have advanced built-in chip
with four separate protections -dV, -dT, Tmax, Timer to protect and prolong
your batteries life. As the charger senses the voltage rise and change
when your batteries have reached a full charge, they will then automatically
switch to compensation charge for about 30 minutes then to trickle charge
which will keep your batteries fully charged until use.
Q. What is supplement charge?
A. Charge between master charge and trickle charge. Your batteries are
still not fully charged after first step high current fast charging. Compensation
charge can fill the batteries up to their full capacity. It will take
too long to fill the batteries up if only using trickle charge. Typical
current at this stage is 250 mA for AA or 180 ma for AAA. It takes about
90 minutes before going to trickle charge. The LED is red at this stage.
Q. What is trickle charge?
A. After your batteries are detected fully charged, the NEXcell
"Smart Charger" will automatically switch from high current
master charge to low current trickle charge to prevent your batteries
from overcharging and maintain your batteries capacity at their top capacity.
Typical current at this stage is 50 ma for AA or 30 ma for AAA. The LED
is green at this stage indicating batteries are ready to be used.
Q. What is "Sleep and Wake-up Mode"?
A. This is an innovative function for NC-50SC model which can keep the
batteries at a full charge condition during trickle charge without damaging
the batteries. Trickle charge is for maintaining the battery capacity
from self discharging. However, long time trickle charging will damage
the batteries. NC-50SC has trickle charge for 12 hours then followed by
a 6 days sleeping period. During this 6 days charger sleeping time, there
are no trickle charge current flowing into the batteries. The charger
will be waked up after the sleeping time over and "juiced" the
batteries with a trickle charge for 12 hours. The sleep and wake-up mode
will be repeated indefinitely. Therefore, the battery can be fully charged
in the charger indefinitely.
Q. How do I calculate the batteries charging
time?
A. You can divide the battery capacity (mAh) by your battery charger ma
rate to derive the charging time. Let's say you are charging 2000 mAh
batteries with a 500 ma (MAHA MH-204F) rate charger will take about 4
hours to get fully charged. (2000/500=4 hrs) It will only take about 2
hours to get your 2000 mAh batteries fully charged if with a 1000 ma (NEXcell
20FC) rate Charger. (2000/1000=2 hrs)
Q. Do you have 1 hour "Smart Fast Charger"?
A. Yes. NEXcell 40FC Smart Fast Charger is an 1 hour charger if
you are charging 2 AA or 2 AAA cells. Put 2 AA or 2 AAA rechargeable batteries
in the left bank of NEXcell 40FC.
The master charging current is designed 2000 ma for left
bank of NEXcell 40FC.
Q. Why NEXcell "Smart Charger"
has conditioning feature?
A. Conditioning feature of NEXcell "Smart Chargers" are
designed for: 1) Recharge NiCd rechargeable batteries which are deeply
effected by "memory effect". 2) If you are charging 2 different
charges remaining cells together or you are not sure of their discharge
state. This will allow both cells to recharge equally.
Q. How often should I condition my batteries?
A. For new NiMH rechargeable batteries, you may need to condition them
several times before your NiMH batteries reaching their peak performance.
Then we recommend conditioning your batteries every ten to twenty charges.
Q. Can I use NEXcell "Smart Charger"
to charge NiCd batteries?
A. Definitely. However you can not use NiCd charger to charge NiMH batteries.
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