Last updated at 05/06/2026 18:02:12
Thunder DC-DC Battery Charger Black Battery Charger
Delivery $27.20
TDR02021 - Thunder Dc Dc Battery Charger 20A with Solar Input
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Thunder DCDC Charger With Digital Display 300w MPPT Solar Lithium Midi Fuses | 24V | 1 Year Warranty | Reverse Polarity Protection
Free delivery
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Battery Charger DC-DC
Delivery between 8–20 June $16.65
Thunder Thunder 20A DC-DC Charger with Bluetooth Screen DC TO DC CHARGERS | Perception Lighting
Free delivery between 9–16 June
Thunder 20 Amp DC-DC Charger with Solar Input
Thunder Dc-Dc Battery Charger 20A With Solar Input TDR02021
Delivery between 11–19 June $9.90
originally posted on caravanrvcamping.com.au
I was looking for a DCDC charger, and also wanted to keep an eye on the state of charge of my starter battery. This new Thunder charger was able to do both so I grabbed it. Love the under bonnet mount and remote monitoring screen.
originally posted on caravanrvcamping.com.au
Great service and product. .Would deal with this company again
originally posted on caravanrvcamping.com.au
I recently added the Thunder DCDC charger to my auxiliary battery. The unit is compact and lightweight and so very easy to install. The addition of the Bluetooth screen makes this little unit a must have. I gave it a good test on my recent trip down in the south west of WA. It didn't skip a beat and kept my battery charged without worry. Highly recommend this product to anyone considering adding to their setup.
| Output Current Rating (Amps) | 20.0 Amps |
| Float | 13.8V |
| Standby Current | 10mA |
| Battery Range | 18 to 250Ah |
| Operating Temperature Range | 0°C to 90°C (current derates after 90°) |
Thunder DC-DC Battery Charger Black Battery Charger
Delivery $27.20
TDR02021 - Thunder Dc Dc Battery Charger 20A with Solar Input
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Thunder DCDC Charger With Digital Display 300w MPPT Solar Lithium Midi Fuses | 24V | 1 Year Warranty | Reverse Polarity Protection
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Battery Charger DC-DC
Delivery between 8–20 June $16.65
Thunder Thunder 20A DC-DC Charger with Bluetooth Screen DC TO DC CHARGERS | Perception Lighting
Free delivery between 9–16 June
I was looking for a DCDC charger, and also wanted to keep an eye on the state of charge of my starter battery. This new Thunder charger was able to do both so I grabbed it. Love the under bonnet mount and remote monitoring screen.
Great service and product. .Would deal with this company again
I recently added the Thunder DCDC charger to my auxiliary battery. The unit is compact and lightweight and so very easy to install. The addition of the Bluetooth screen makes this little unit a must have. I gave it a good test on my recent trip down in the south west of WA. It didn't skip a beat and kept my battery charged without worry. Highly recommend this product to anyone considering adding to their setup.
| Output Current Rating (Amps) | 20.0 Amps |
| Float | 13.8V |
| Standby Current | 10mA |
| Battery Range | 18 to 250Ah |
| Operating Temperature Range | 0°C to 90°C (current derates after 90°) |
Thunder 20 Amp DC-DC Charger With Solar Input - TDR02021
The Thunder 20A DC-DC Charger with MPPT Solar Regulator uses a unique pulse charging algorithm to intelligently determine the best charge rate for your auxiliary battery.
The Thunder 20A DC-DC Charger with MPPT Solar Regulator uses a unique pulse charging algorithm to intelligently determine the best charge rate for your auxiliary battery.
The Thunder 20A DC-DC Charger with MPPT Solar Regulator uses a unique pulse charging algorithm to intelligently determine the best charge rate for your auxiliary battery.
The Thunder 20A DC-DC Charger with MPPT Solar Regulator uses a unique pulse charging algorithm to intelligently determine the best charge rate for your auxiliary battery.
in 7 offers
The lowest price for Thunder 20 Amp DC-DC Charger With Solar Input - TDR02021 right now is $150.00 at Cash Converters, compared across 6 retailers.
The all-time low was $129.29 on 27 Nov 2025 — today's price is 16% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 5 June 2026.
