Q: Why aren't all the batteries at full capacity out of the package?
A: All NiMH batteries will self-discharge in storage. Stored at 70 degrees F, a battery will lose 40%-60% of their charge per month. Also, batteries discharge at different rates. Four batteries from the same package can have a different charge when the package is opened. It is best to charge all batteries before using.
Q: Why do I need to charge brand new rechargeable batteries?
A: NiMH rechargeable batteries will self-discharge in 30-60 days. New batteries just purchased have been sitting in a warehouse or store shelf for an unknown period of time. For best performance charge them before using them.
Q: I charged my new batteries and they did not show full capacity even though the charger said FULL.
A: Rechargeable batteries become better over time. It is best to charge batteries before their first use or after a long storage. Then use them in a device, charge them, use them, charge them, 5-10 times before ‰ۡÌÝ?refreshing ‰ۡÌÝ? the batteries. The REFRESH mode will discharge and recharge the battery up to 20 times to reach its fullest capacity. The REFRESH or conditioning mode works best on batteries that have been used under load for awhile first. It is also a great way to renew old rechargeable batteries. NOTE: Discharge current will be half of charging current selected.
Q: Why does one battery sold with the charger loose its charge faster than the others?
A: Batteries discharge at different rates. Four batteries from the same package can have a different charge when the package is opened. This is true of all rechargeable and nonrechargeable batteries. It is best to charge new rechargeable batteries before using. If one battery seems to lose charge faster then the other batteries use it and charge it several times then use the discharge/refresh cycle with the battery.
Q: How can I tell the capacity left in my battery?
A: Use the Test Mode. Capacity is measured by how much can be removed from a battery. The TEST mode first charges the battery to full then discharges to measure capacity the will recharge to full for use. NOTE: Discharge current will be half of charging current selected.
Q: How can I tell the current voltage in my battery?
A: Insert the battery into the charger. Press and release the DISPLAY button until you see V in the display. The number will be the voltage of the battery. This number may not be the capacity of the battery due to discharge.
Q: When do I need to discharge/refresh my batteries?
A: If you use a radio or camera for short times then recharge the batteries it is best to use the Discharge/Refresh cycle occasionally to refresh the battery. NOTE: Discharge current will be half of charging current selected.
A: Old rechargeable batteries that do not seem to be charging should be refreshed. The Discharge/Refresh cycle will discharge then charge the battery up to 20 times or until the charger cannot remove more capacity from the battery in discharge mode, it will charge the battery full, and complete the refresh cycle. NOTE: This is best performed after the batteries have been used under load at least 5-10 times. NOTE: Discharge current will be half of charging current selected.
Q: How long will rechargeable batteries last?
A: Generally you can charge batteries well over 500 times. Lifespan is dependent on how the batteries are used and how often. The more often rechargeable batteries are used, the better they become. TIPS: ‰ۡó¢ Do not drop batteries. ‰ۡó¢ Remove batteries from the charger when charging is complete. If left in an unplugged charger they will discharge. ‰ۡó¢ Store batteries in a cool environment, between 40 and 80 degrees. Refrigeration is not recommended. ‰ۡó¢ If batteries are cold, bring to room temperature before using. ‰ۡó¢ Fully charge batteries before storage.
Q: Do NiMH batteries develop a memory like NiCad batteries?
A: They are not prone to it, but it is possible. Overused NiMH can develop reduced capacity such as the memory issue referred to in the NiCad type batteries. That's where the BC700/BC900/BC9009/BC1000 chargers can help by using the discharge/fresh modes to condition the batteries.
Q: How do I keep the AAA batteries from falling out of the charger? The AA batteries fit, but the AAA batteries do not.
A: The AAA batteries will fit if they are inserted into the compartment properly. Look at the battery compartment at a slight angle. You will see a narrower silver curve at the lower part, below the AA connection. Slide the negative end of the AAA battery back so that it is laying in this narrow curve and the press down on the positive end of the battery. The battery will then catch the clip that is meant for the AAA batteries. If you do not get the AAA battery flat into the compartment, the battery will not catch the correct clip and will not charge.
Q: How long does it take to refresh batteries?
A: This will depend on the age and condition of the batteries. The Discharge/Refresh mode will discharge and charge the batteries up to 20 times or until the charger can no longer remove additional power from the batteries. The capacity of the battery is determined by how much power can be removed. Insert AAA batteries into lower clip. Insert AA batteries into upper clip. NOTE: Discharge current will be half of charging current selected.
Q: Does the battery charger provide protection if a battery is inserted backwards?
A: When the battery is put in backwards it cannot make contact because of design (unless extreme force is used) so no harm to charger or battery should occur.
Q: What are the different readings on the display?
A: Milliamp: mA is the charging current or speed of charge in that charge bay. Milliamp hours: mAh is the capacity of the battery or the amount of charge added to a battery. If a 2600mAh capacity battery is already half full and you charge it you will not add 2600mAh of capacity to the battery. Amp hours: Ah is the capacity of the battery or the amount of charge added to a battery. When the battery charger shows values above 1999mAh, it changes to Amp hours. Due to the limited space on the four displays the charger cannot display over 1999mAh. When the mAh (Milliampere hour) reaches 2000 the display switches to Ah (Ampere hour) by moving the decimal point. A mAh is 1/1000 of an Ah. Example: 2.29Ah and 2.34 Ah would be 2290mAh and 2340 mAh. Time elapsed: h. Shows the charging time. Voltage: V. measures battery voltage. NULL: Will show when: ‰ۡó¢ No battery in the charging bay. ‰ۡó¢ The battery is below .9 volts and the charger thinks the battery is damaged so will not charge it. You may want to invest in a small charger/holder that will bring the battery back above .9v when attached for 20-30 seconds. The battery can then be charged in our charger. FULL: Will show when the battery has completed its charging cycle. The FULL display may alternate with a trickle charge display. CHARGE: The batteries are charging at the current you chose (default 200mA). DISCHARGE: The battery will be discharged then charged one time. DISCHARGE/REFRESH: Batteries will be discharged and recharged up to 20 times or until the charger can not remove additional charge. The battery will receive a final charge and has reached it's capacity. TEST: Batteries are charged to full, then discharged to measure capacity, then recharged to full. NOTE: For Discharge, Refresh and Test modes, Discharge current will be half of charging current selected.
Q: Can I plug the battery charger into a power inverter?
A: It is not recommended to plug the battery charger into a power inverter as it may cause damage.
Q: How do I charge my ‰ۡÌÝ?C‰ۡó? & ‰ۡÌÝ?D‰ۡó? batteries with the adapters?
A: The battery charger can only charge ‰ۡÌÝ?AA‰ۡó? and ‰ۡÌÝ?AAA‰ۡó? batteries. The ‰ۡÌÝ?C‰ۡó? and ‰ۡÌÝ?D‰ۡó? adapters are for use with the ‰ۡÌÝ?AA‰ۡó? batteries. Insert the ‰ۡÌÝ?AA battery into the adapter. Then use battery in a flashlight, radio or other products that requires a ‰ۡÌÝ?C‰ۡó? or ‰ۡÌÝ?D‰ۡó? cell battery.
Q: How much power is used to charge the batteries?
A: The BC700, BC900, BC9009 & BC1000 use the following power in watts: ‰ۡó¢ Charging 1 battery at 200 mA uses 0.75 watt. ‰ۡó¢ Charging 4 batteries at 200 mA uses 3 watts. ‰ۡó¢ Charging 4 batteries at 1000 mA uses 13 watts. They will use the same amount of power whether charging a 2000 mAh battery or a 2800 mAh battery. The difference will come in the length of time needed to charge based on the capacity of the battery when charging begins.
Q: There is a low humming coming from my charger. Is this normal?
Q: Is it possible to use the BC1000, BC900, BC9009, BC700 charger with a 12V auto plug?
A: We do not recommend trying to use the BC900, BC9009, BC700 charger with a 12V auto plug. It may damage the charger.
A: The BC500 does come standard with a car adapter. This adapter will not work with the other chargers.
Q: Can the charger be used to test standard alkaline or lithium batteries?
A: No. We recommend using a multimeter to test your batteries. Inserting batteries that are not NiMh or NiCd may damage the battery and the charger.
Q: Why does my charger show 0.00 in the display?
A: If you are looking at Time Elasped (h) and you just put batteries in, you will see 0.00.
A: When the charger detects that the battery is getting too warm (faster charging rates create more heat) the charger will stop charging until the battery cools down. At that point the charger will resume charging.
Q: Does the battery charger have overheat protection?
A: When overheating condition occurs (over about 53̴åÁC, 127.4 F usually due to too high a charging current selected), the charging will be stopped immediately for all charging bays (charging and discharging), and the display will shown ‰ۡÌÝ?000 mA‰ۡó?, the charging process will only resume once the temperature of the rechargeable batteries drops to a safe level.
Q: Can I keep the batteries in the charger for any length of time?
A: No - Leaving the batteries in the charger for extended periods of time can potentially damage the batteries or the charger. Batteries should be removed after they are fully charged or removed within roughly 24 hours for professional use.
Q: Can I charge AA Lithium rechargeable batteries such as those made by Ray-OVac?
A: The BC1000, BC900, BC9009, BC700, & BC500 are designed to be used with NiCd (Nickel Cadium) of NiMh (Nickel Metal Hydride) batteries only. Charging other types of batteries may damage the charger or the batteries. NOTE: Some rechargeable batteries require a specific type of charger. Please look on the battery packaging for this information.
Q: How do I read the \‰ۡó?aH values‰ۡó?\ on my Battery Charger? The \‰ۡó?mAH‰ۡó?\ and the \ ‰ۡÌÝ?aH‰ۡó?\ value shows numbers like \‰ۡó?2.29‰ۡó?\ and ‰ۡÌÝ?2.34‰ۡó?\.
A: Due to the limited space on the four displays the charger cannot display over 1999mAh. When the mAh (Milliampere hour) reaches 2000 the display switches to Ah (Ampere hour) by moving the decimal point. A Mah is 1/1000 of an Ah. In the above example the 2.29 and the 2.34 Ah would be 2290 and 2340 mAh.
Q: What does the Manual mean by Trickle Charge?
A: The Trickle Charge feature is to ensure full charge for use because of the self-discharge nature of NIMH batteries. After a battery is charged to FULL, it will periodically go into Trickle Charge mode.
Q: What does it mean when you see NULL in the charger display.
A: This means either you have a battery that has depleted it's voltage to less than .9v of power and there is not enough energy in it to take a charge, or you have a bad battery. You may want to invest in a small charger/holder that will bring the battery back above .9v when attached for 20-30 seconds. The battery can then be charged in our charger.
Q: Can I use batteries of different capacities in my product?
A: It is best to use batteries of the same capacity and use them in matched sets. This will provide better performance from the batteries. If you have a product that uses three batteries and one battery is weaker it will discharge faster and shorten the run time. If you have one weak battery it is possible that the weak battery may reverse polarity and damage the battery. This is why this battery charger will not charge a battery that is below .9volts.