What is the regular battery charger?
What does NEXcell "Smart Charger" do?
What is supplement charge?
What is trickle charge?
What is "Sleep and Wake-up Mode"?
How do I calculate the batteries charging time?
Do you have 1 hour "Smart Fast Charger"?
Why NEXcell "Smart Charger" has conditioning feature?
How often should I condition my batteries?
Can I use NEXcell "Smart Charger" to charge NiCd batteries?

What is the regular battery charger?
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.

What does NEXcell "Smart Charger" do?
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.

What is supplement charge?
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.

What is trickle charge?
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.

What is "Sleep and Wake-up Mode"?
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.

How do I calculate the batteries charging time?
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)

Do you have 1 hour "Smart Fast Charger"?
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.

Why NEXcell "Smart Charger" has conditioning feature?
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.

How often should I condition my batteries?
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.

Can I use NEXcell "Smart Charger" to charge NiCd batteries?
Definitely. However you can not use NiCd charger to charge NiMH batteries.