3. 6v Rechargeable CMOS Battery 60mAh (NiCd/NiMH) For Vintage Motherboards & PLC
Item History & Price
| Reference Number: Avaluer:7249059 | Type: battery |
NOTE: All shipments are now upgraded to the latest NiMH chemistry. Perfect drop-in replacement for older 3.6v NiCd 60mAh batteries — same physical dimensions and voltage. NiCd battery chemistry is being phased out worldwide because cadmium is a toxic environmental hazard. Batteries I've seen in the past few years still labeled as NiCd are actually NiMH (which you can see if you peel off the plastic wrap and look at the stamped designation on the batteries). All shipm...ents are upgraded to 80mAh at no charge — 1/3 higher capacity. Same physical dimensions and all other electrical characteristics are the same ... it just holds more charge which means it will run approximately 1/3 longer on a full charge (just like a 800 mAh AAA flashlight battery holds more charge and lasts longer than a 600 mAh rated AAA battery.
If you were buying a battery for your flashlight or digital camera, wouldn't you buy the one with a higher rating? A common misunderstanding in battery or charger amp/hr capacity is thinking that a higher capacity rating will overpower the device. This is not true. The actual amperage draw is determined by the device, not the battery or charger. It is perfectly fine to use a higher rated battery. The only problem is in using a LOWER rated power source because it may not be able to supply the current (mAh) that the device tries to draw. Again — higher mAh is fine (even superior), but lower mAh may not be okay. This 80 mAh battery will work perfectly anywhere a 60 mAh is specificied, plus offers the advantage of longer run time. Another thing important to understand — NiMH being a better technology than NiCd, also has a higher energy density for the same physical so typically have a higher capacity. I tried to carry 60mAh rated NiMH batteries for buyers who didn't understand the physics of current draw, but the batteries labeled as 60mAh have pretty much disappeared. I suspect that most of the batteries labeled as 60mAh NiCd or NiMH batteries still being sold are actually mislabeled 80mAh NiMH. Another potential benefit is that a higher capacity battery may last longer before needing replacement -- all rechargeable batteries slowly lose capacity as they age so this battery, with its greater reserve capacity, could continue to have sufficient capacity for a longer time in many senarios before needing to be replaced. Brand NEW. Tested just prior to shipment and will be shipped fully charged. Dimensions: Sits about 15.5mm high when installed in circuit board and about 15.5mm wide. Distance between pins (and length of battery) is about 19mm. From all the vintage motherboards I've seen (and I've seen many thousands in my long career) this seems to be the standard size for these batteries. Procedure: Desolder the old battery, being careful to note the old battery's polarity before removal (one end will probably be marked with a "+" and the motherboard will probably be marked on the "+" side). If high melting point lead-free solder was used on your motherboard, you may find it difficult to melt. Trick: melt standard low temp tin/lead solder onto the lead-free solder. This provides better heat conduction between the soldering tip and the existing solder. The solders will mix, lowering the melting point of the existing solder and allowing you to more easily desolder. Using solder wick or solder vacuum tool, remove old solder from circuit board contacts. Make sure the solder is removed from the the holes so the pins of the new battery can be inserted. If the old battery leaked, use an old toothbrush and isopropyl or denatured alcohol to clean the circuit board. If the battery leakage caused corrosion damage to circuit traces, you may need to repair and replace the damaged traces with a fine wire. Insert and solder in the new battery using proper soldering techniques, making sure to observe correct battery polarity. Be sure to use non-corrosive flux designed for electronic circuits and a suitable soldering pencil or soldering station. Excessive soldering heat will damage the battery and/or the circuit board traces. We hope the procedure outlined above may be helpful, but we cannot provide additional assistance or support. When powered on, the motherboard provides a slow trickle charge to the battery to maintain the full charge. When the computer is powered down, the battery provides the power required to maintain the CMOS settings as well as power the RTC (Real Time Clock) to maintain the current date & time. Note: color and appearance of the battery may vary from the photo, but the dimensions and other specifications will be the same. Manufacturers worldwide are switching from NiCd to the newer NiMH technology -- and for this particular purpose the two types are interchangeable. Explanation: You've probably heard that NiMH batteries cannot be charged in a NiCd charger, and this is indeed true for high-speed chargers. The reason is that high-speed battery chargers must be able to detect the small voltage drop that occurs when a battery reaches its full charge capacity so that it can stop charging (overcharging damages the battery). Older high-speed NiCd chargers usually are only able to detect the relative large voltage drop occurring when NiCd batteries reach a full charge, but most cannot detect the much smaller drop of a NiMH battery -- so the charging continues and the NiMH battery is overcharged (damaged). Note that newer fast chargers designed for NiMH batteries also work fine with NiCd. A motherboard uses only a very, very low and steady trickle charge current which is just high enough to maintain the battery in a fully charged state, but not high enough to overcharge. Trickle chargers are very simple designs and do not detect anything. NiCd and NiMH batteries are interchangeable for use with trickle chargers such as used in motherboards. There are other small differences in the two battery chemistries, but the voltage is the same and for this purpose they are completely interchangeable. Domestic shipping via USPS First Class Package with tracking. International shipping via International First Class Package (tracking not available). Due to the nature of this item and the varying skills of buyers, this item cannot be returned if it shows any evidence of having been installed. Notes Purchaser is responsible for determining compatibility before bidding. We are not responsible for compatibility issues. Purchaser must direct any warranty issues or support questions to the original manufacturer. Any discrepancy must be reported immediately -- no later than 7 calendar days after delivery. Terms of Sale All sales are final. WARRANTY: Seller provides no warranty or guarantee unless specifically stated in this auction. If any warranty or guarantee is included it will apply to the item only, exclusive of shipping charges. SHIPPING: Shipping charges include the cost of packaging materials and the labor required for preparing the item for shipment. To care for our precious and shared environment, we practice minimal but safe packaging and utilize recycled packaging materials whenever possible. Shipping charges include the cost of insurance against loss during transit. USPS insurance is provided by third party. APO/FPO: We ship to most APO/FPO addresses if the item shipping method is listed as USPS. Shipping charges are the same as domestic. Buyer is responsible for determining restrictions related to their APO. Shipment confirmation/tracking may not be available to some APO addresses. Buyer agrees to assume all risk of damage or loss in transit. SHIP-TO ADDRESS: Shipments ALWAYS go to the "Paypal Confirmed Address" listed in your PayPal payment -- this is the address to make sure is accurate! This is normal procedure for most sellers because paypal provides fraud protection to sellers only when shipments go to the address listed in paypal's payment notification. Please correct your PayPal ship-to address BEFORE submitting payment so it will be correctly listed in the paypal payment. Do not attach a note on the paypal payment asking us to ship to a different address. Tracking: We purchase tracking for most domestic shipments valued at over $10. Shipping Notification: A confirmation email with full shipping details will automatically be sent to the email address listed in your paypal payment. You obviously won't receive the shipping notification if our email is blocked or marked as spam.
If you were buying a battery for your flashlight or digital camera, wouldn't you buy the one with a higher rating? A common misunderstanding in battery or charger amp/hr capacity is thinking that a higher capacity rating will overpower the device. This is not true. The actual amperage draw is determined by the device, not the battery or charger. It is perfectly fine to use a higher rated battery. The only problem is in using a LOWER rated power source because it may not be able to supply the current (mAh) that the device tries to draw. Again — higher mAh is fine (even superior), but lower mAh may not be okay. This 80 mAh battery will work perfectly anywhere a 60 mAh is specificied, plus offers the advantage of longer run time. Another thing important to understand — NiMH being a better technology than NiCd, also has a higher energy density for the same physical so typically have a higher capacity. I tried to carry 60mAh rated NiMH batteries for buyers who didn't understand the physics of current draw, but the batteries labeled as 60mAh have pretty much disappeared. I suspect that most of the batteries labeled as 60mAh NiCd or NiMH batteries still being sold are actually mislabeled 80mAh NiMH. Another potential benefit is that a higher capacity battery may last longer before needing replacement -- all rechargeable batteries slowly lose capacity as they age so this battery, with its greater reserve capacity, could continue to have sufficient capacity for a longer time in many senarios before needing to be replaced. Brand NEW. Tested just prior to shipment and will be shipped fully charged. Dimensions: Sits about 15.5mm high when installed in circuit board and about 15.5mm wide. Distance between pins (and length of battery) is about 19mm. From all the vintage motherboards I've seen (and I've seen many thousands in my long career) this seems to be the standard size for these batteries. Procedure: Desolder the old battery, being careful to note the old battery's polarity before removal (one end will probably be marked with a "+" and the motherboard will probably be marked on the "+" side). If high melting point lead-free solder was used on your motherboard, you may find it difficult to melt. Trick: melt standard low temp tin/lead solder onto the lead-free solder. This provides better heat conduction between the soldering tip and the existing solder. The solders will mix, lowering the melting point of the existing solder and allowing you to more easily desolder. Using solder wick or solder vacuum tool, remove old solder from circuit board contacts. Make sure the solder is removed from the the holes so the pins of the new battery can be inserted. If the old battery leaked, use an old toothbrush and isopropyl or denatured alcohol to clean the circuit board. If the battery leakage caused corrosion damage to circuit traces, you may need to repair and replace the damaged traces with a fine wire. Insert and solder in the new battery using proper soldering techniques, making sure to observe correct battery polarity. Be sure to use non-corrosive flux designed for electronic circuits and a suitable soldering pencil or soldering station. Excessive soldering heat will damage the battery and/or the circuit board traces. We hope the procedure outlined above may be helpful, but we cannot provide additional assistance or support. When powered on, the motherboard provides a slow trickle charge to the battery to maintain the full charge. When the computer is powered down, the battery provides the power required to maintain the CMOS settings as well as power the RTC (Real Time Clock) to maintain the current date & time. Note: color and appearance of the battery may vary from the photo, but the dimensions and other specifications will be the same. Manufacturers worldwide are switching from NiCd to the newer NiMH technology -- and for this particular purpose the two types are interchangeable. Explanation: You've probably heard that NiMH batteries cannot be charged in a NiCd charger, and this is indeed true for high-speed chargers. The reason is that high-speed battery chargers must be able to detect the small voltage drop that occurs when a battery reaches its full charge capacity so that it can stop charging (overcharging damages the battery). Older high-speed NiCd chargers usually are only able to detect the relative large voltage drop occurring when NiCd batteries reach a full charge, but most cannot detect the much smaller drop of a NiMH battery -- so the charging continues and the NiMH battery is overcharged (damaged). Note that newer fast chargers designed for NiMH batteries also work fine with NiCd. A motherboard uses only a very, very low and steady trickle charge current which is just high enough to maintain the battery in a fully charged state, but not high enough to overcharge. Trickle chargers are very simple designs and do not detect anything. NiCd and NiMH batteries are interchangeable for use with trickle chargers such as used in motherboards. There are other small differences in the two battery chemistries, but the voltage is the same and for this purpose they are completely interchangeable. Domestic shipping via USPS First Class Package with tracking. International shipping via International First Class Package (tracking not available). Due to the nature of this item and the varying skills of buyers, this item cannot be returned if it shows any evidence of having been installed. Notes Purchaser is responsible for determining compatibility before bidding. We are not responsible for compatibility issues. Purchaser must direct any warranty issues or support questions to the original manufacturer. Any discrepancy must be reported immediately -- no later than 7 calendar days after delivery. Terms of Sale All sales are final. WARRANTY: Seller provides no warranty or guarantee unless specifically stated in this auction. If any warranty or guarantee is included it will apply to the item only, exclusive of shipping charges. SHIPPING: Shipping charges include the cost of packaging materials and the labor required for preparing the item for shipment. To care for our precious and shared environment, we practice minimal but safe packaging and utilize recycled packaging materials whenever possible. Shipping charges include the cost of insurance against loss during transit. USPS insurance is provided by third party. APO/FPO: We ship to most APO/FPO addresses if the item shipping method is listed as USPS. Shipping charges are the same as domestic. Buyer is responsible for determining restrictions related to their APO. Shipment confirmation/tracking may not be available to some APO addresses. Buyer agrees to assume all risk of damage or loss in transit. SHIP-TO ADDRESS: Shipments ALWAYS go to the "Paypal Confirmed Address" listed in your PayPal payment -- this is the address to make sure is accurate! This is normal procedure for most sellers because paypal provides fraud protection to sellers only when shipments go to the address listed in paypal's payment notification. Please correct your PayPal ship-to address BEFORE submitting payment so it will be correctly listed in the paypal payment. Do not attach a note on the paypal payment asking us to ship to a different address. Tracking: We purchase tracking for most domestic shipments valued at over $10. Shipping Notification: A confirmation email with full shipping details will automatically be sent to the email address listed in your paypal payment. You obviously won't receive the shipping notification if our email is blocked or marked as spam.
