This chart shows that when you are comparing retailers to buy a Panasonic 2.4V Battery you cannot just assume that the same battery is being sold at every retailer. Batteries that have the same part numbers will often times have different capacity levels and those differences reflect in the price. Follow the chart below to see the differences in price and capability with the "same battery" from one retailer to the next. Again this is comparing Panasonic 2.4V Battery part number: EY9021B
Retailer |
BatteryShip |
Home Depot (an example) |
Brand |
Panasonic |
Panasonic |
Part # |
EY9021B |
EY9221B |
Volts |
2.4V |
2.4V |
Capacity |
2.0 Ah |
2.8 Ah |
Chemistry |
NICD |
NIMH |
Price for 1 |
$25.95 ($12.98 per Ah) |
$26.00 ($9.29 per Ah) |
Price for 2 |
$46.71 ($23.35 per Ah) |
$52.00 ( $18.57 per Ah) |
Tax |
No (except for WY residents) |
Yes |
Free Shipping |
Yes |
No |
Cell Grade |
A |
A |
Charger |
n/a |
EY0L11B |
Charger Price |
n/a |
$78.00 |
OEM/AfterMarket |
AfterMarket |
OEM |
Cost Value Grade |
Low Price Good Value |
High Price Good Value |
The Panasonic 2.4V Battery capacity – is measured in either Ah or mAh. The higher the capacity rating, the longer your battery can last between charges (this is runtime). Battery capacity quantifies the total amount of energy stored within a battery. Generally, BatteryShip.com batteries have a mAh rating 30-100% higher than the batteries that are originally installed by the manufacturer of your device. Another way to consider a battery's capacity is by runtime (how long a battery will power a device before the battery is recharged). The higher the capacity the longer the runtime. The longer the runtime the longer you will be able to use your device without recharging the battery. More capacity equals more runtime. More runtime equals better value!