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Thunder 20 AMP Battery Charger TDR02120


Thunder Auto

Product Code: TDR02120

Thunder 20 AMP Battery Charger TDR02120

With a heavy duty, water resistant design, the 20 amp battery charger features a comprehensive LED display and utilises a fully automatic computer control system to charge most 12 volt GEL, AGM, Lead Acid and Calcium batteries. Suitable for 35-350Ah and 450Ah for maintenance (650 to 800CCA), the sophisticated 8 stage charger features pulse mode technology which reduces oxidation, maintains electrolyte consistency and combats straitifcation in the battery, to provide longer battery life.

Product Specifications:

Input Voltage: 240VAC / 50HZ

Type: 8 stage pulse

Approval: CE, EMC, SAA and C-Tick

Safety Protection: Over charging, reverse polarity (flashing LED), short circuit and over temperature.

Minimum Start Voltage: >0 Volts

Operating Temperature: -15c - +50c

Maximum Charging Current: 20 Amps

Display: Lights show stage of charge

Ideally Suited Battery Ratings: 35-350Ah 650-800CCA

Power Supply: 10 Amp @ 13.7 Volts

Fast Dispatch

Once payment has cleared we will post your item as soon as possible. However, If the item is purchased after 2pm, it will be shipped the next day.

Combined Shipping

We combine shipping for orders with multiple items to save our customers money on postage.


Most orders will be sent with a tracking number, to confirm if your item has tracking please contact us.

Please note:

Additional postage charges may apply for regional or remote areas, please contact us if you are unsure about your area.

All efforts will be made to send out orders as soon as possible so you receive your item on time. However please be aware that once an item is sent from our warehouse it is out of our control.

If you would like registered post with signature on delivery and insurance please contact us before purchasing the item.

As per Australia Post policy, all EXPRESS postage automatically have ATL (Authority to leave) which means if you’re not home at the time of delivery it will be left on the premise in a location deemed safe by Australia Post. More information about ATL can be found here

Local Pickup: Please allow up to 2 business days for local pickups

Please ensure your contact number is included and correct. Failure to do so could result in delayed shipping and/or extra delivery charges in the event of a missed delivery.

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