E-store.net.au a discount shop selling high quality drill batteries. All of cheap cordless drill batteries including Bosch,Makita,Hitachi,Dewlat,Panasonic,Craftsman,Milwaukee,Firestorm,Skil and many more brands are tested for thousands times for years,That why we offer 1 year warranty and 30 days unconditionally refund for all power tools batteries that sell.
Here is recommened MAKITA BH 9020B battery

Battery Type: Ni-MH
Weight: 666.23 g
Capacity: 2200.00 mAh
Colour: Dark Blue
Dimensions: 67.50x64.70x66.81 mm
Condition:New, 1 year warranty!
Volt: 9.60V
Descriptions of MAKITA BH 9020B power tool battery:
Please ensure the product(s) that you are going to buy fits the brand, model and part number of your device. Best replacement for the original battery pack MAKITA BH 9020B. Our power tools batteries are manufactured using fine quality cells. Each battery is double checked before leaving the factory. Heavy soldered connections hold under extreme use. Unique nickel "bowtie" contact plates are spot welded in 10 points that allow 25% better current flow between cells than standard plates. Heavy impact-resistant battery cases have excellent fit and finish. Battery cases are custom molded for a nice, snug fit. 1-Year warranty against manufacturer's defects. Great battery life at half the cost. We accept credit card payment through WorldPay or PayPal payment system. We also accept Personal Cheque, Money Order and Bank Transfer, but Credit terms are not available. We ship to AU destination only. 100% safe shopping guaranteed. How to Take a BH 9020B MAKITA Battery
BH 9020B MAKITA makes various electric tools that use rechargeable battery packs as their power source. Rechargeable battery packs are good for hundreds or even thousands of charge and recharge cycles, but they eventually will begin to show signs of decreased capacity and performance. If you own a tool with a pack like this, you can choose to replace the cells within the pack yourself and probably save some money when compared to buying a brand new battery. The first step in this process is to take the battery pack apart.
Inspect the battery for small screws that hold the plastic case of the battery together. If you locate these screws, use a small Phillips head screwdriver to remove them. Proceed directly to Step 3 if you were able to find the screws and successfully removed them. Heat up a soldering iron equipped with a chisel tip if you do not find any screws that hold the pack together. You will use the chisel tip to cut a line around the molded hard plastic case that encloses the battery pack. Set the pack on its base and carefully work your way around the midpoint of the pack in a straight line. Allow the hot plastic to cool. Separate the two pieces of plastic case to reveal the inside of the battery pack.More 9.6v power tools battery visit the site.
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