Check the item description to confirm this fits your vehicle

Picture 1 of 12

Stock photo

Thunder DC-DC Dual Battery Charger 20A with MPPT Solar and Bonus Midi Fuse Set - Picture 1 of 12

Thunder DC-DC Dual Battery Charger 20A with MPPT Solar and Bonus Midi Fuse Set - Picture 2 of 12

Thunder DC-DC Dual Battery Charger 20A with MPPT Solar and Bonus Midi Fuse Set - Picture 3 of 12

Thunder DC-DC Dual Battery Charger 20A with MPPT Solar and Bonus Midi Fuse Set - Picture 4 of 12

Thunder DC-DC Dual Battery Charger 20A with MPPT Solar and Bonus Midi Fuse Set - Picture 5 of 12

Thunder DC-DC Dual Battery Charger 20A with MPPT Solar and Bonus Midi Fuse Set - Picture 6 of 12

Thunder DC-DC Dual Battery Charger 20A with MPPT Solar and Bonus Midi Fuse Set - Picture 7 of 12

Thunder DC-DC Dual Battery Charger 20A with MPPT Solar and Bonus Midi Fuse Set - Picture 8 of 12

Thunder DC-DC Dual Battery Charger 20A with MPPT Solar and Bonus Midi Fuse Set - Picture 9 of 12

Thunder DC-DC Dual Battery Charger 20A with MPPT Solar and Bonus Midi Fuse Set - Picture 10 of 12

Thunder DC-DC Dual Battery Charger 20A with MPPT Solar and Bonus Midi Fuse Set - Picture 11 of 12

Thunder DC-DC Dual Battery Charger 20A with MPPT Solar and Bonus Midi Fuse Set - Picture 12 of 12

Thunder DCDC 20A Battery Charger with 300W MPPT Solar Regulator - TDR02020

4.7753 product ratings

STARPOINT Auto Elec (10137)
99.6% positive Feedback

Price:

AU $229.00

Free postage

Estimated delivery Tue, 21 May - Fri, 24 May

Free returns with eBay Plus

Try eBay Plus for free

Returns:

30-day returns. Buyer pays for return postage.

Free returns with .

Condition:

Brand New

MPPT solar regulator will regulate solar panels at maximum efficiency capable of up to 300W of solar @ 25V. Splash resistant (not IP rated).

About this product

Product Identifiers

Brand
THUNDER
MPN
TDR02020
Ean
9315275901640
GTIN
9315275901640
Model
TDR02020
eBay Product ID (ePID)
4032780661

Product Key Features

Compatible Battery Sizes
12V
Type
Chargers, Solar Regulator

Additional Product Features

MAX. Compatible Appliance Wattage
300W

All listings for this product

item 1 Thunder TDR02020 20A DC-DC Charger With MPPT Solar Regulator
AU $169.00
Almost goneFree postage
item 2 Thunder DC-DC Dual Battery Charger 20A with MPPT Solar and Bonus Midi Fuse Set
AU $229.00
Free postage
item 3 THUNDER 20 Amp DCDC Charger 4x4
AU $270.00
Free postage

4.8

4.8 out of 5 stars based on 53 product ratings

53 product ratings

49 users rated this 5 out of 5 stars
1 users rated this 4 out of 5 stars
0 users rated this 3 out of 5 stars
1 users rated this 2 out of 5 stars
2 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 44 reviews

5 out of 5 stars
by inline_phil27 Dec, 2018
Worked better than expected
I absolutely love this gadget and here's why. Bought this for use in my camper van conversion to charge two 920Ah 12V AGM house batteries while driving. In a word, this is an AWESOME piece of gear that truly does what it claims. Run the fridge while and charge the batteries while driving? No problem! It's rated at 20A and it truly is. It did take a while to get to the USA [thanks to the wisdom in our currently ummm... unusual political system] but all is well. No worries about the unit itself. Took it on our first long-haul trip today from Tampa, FL to St. Augustine, FL. Ran the house batteries down a bit while keeping the fridge on overnight [no shore power]. Started the engine and the unit snapped to attention immediately sensing the low-charge state [I believe it was somewhere around 75%]. Drove for four hours also running the fridge and at the destination 5 hours away, it was topped off at about 94%. On the way back, charge was an initial 80% and reached 100% about an hour from home [fridge off]. I suspect you will have similar results. Product is very high quality and a snap to install. Two 12V circuit breakers [one in, one out] and it's good to go. Unlike diode steering isolators, this is a true charger and will maintain a proper full charge from your alternator. Mine is in a 2018 Ford Transit and has one of those duty-cycled alternators to help improve mileage. No worries with this unit in dealing with that kind uf unusual circuitry. Worked like a champ. So while the isoaltors are very simple to install and much cheaper to buy, neither battery in your rig will be fully charged because of the diode voltage drop [about 0.7V less than full charge]. With this unit, all batteries reach full charge and will last MUCH longer as a result.Read full review
Verified purchase: Yes | Condition: New
5 out of 5 stars
by sparkyjames00707 Jul, 2019
Amazing unit
This DCDC charger is fantastic. Installed and works really well. The connections were a little hard to work out the neatest way to install and the factory terminal covers are basically useless, but other than that it’s fantastic! I used thick glue filled heatshrink and split conduit for extra insulation/ electrical separation. Definitely recommend it and will buy another for hw camper battery.
Product Reviews Images
Verified purchase: Yes | Condition: New
5 out of 5 stars
by kialoy074028 Jun, 2020
Reasonable product
Great value and works better than expected. Solar charge works well with 120w solar system on cloudy day, had no power issues camping for 3 days with 60L fridge, lights, 12v shower and charging devices from battery. No noise or heat from the dc charger.
Verified purchase: Yes | Condition: New
5 out of 5 stars
by 2imacfar11 Jun, 2020
Thunder is robust and trouble free.
Thunder works great with modern smart alternators, charging my caravan battery and looking after my vehicle battery at the same time (not letting it go flat). A bonus with the Thunder is the built in solar input so you do not need a solar regulator as its built into the Thunder. This unit is robust with clear readout.
Verified purchase: Yes | Condition: New
5 out of 5 stars
by podzolic30 Mar, 2021
affordable technology that works
quick and easy install easy to understand directions , does everything you need for dual battery setup at a reasonable price
Verified purchase: Yes | Condition: New

Best Selling in Battery Chargers

See all

Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Best Selling in Battery Chargers

Enerdrive ePOWER DC2DC 12V 40A DC to DC Multi-Stage Battery Charger (EN3DC40+)
4.8 out of 5 stars based on 29 product ratings
AU $470.00 New
---- Used
Panasonic Eneloop Smart and Quick Battery Charger - K-KJ55MCC4TA
4.8 out of 5 stars based on 36 product ratings
AU $49.50 New
---- Used
Victron Blue Smart 12V 15A IP22 SLA/LiFePO4 Battery Charger - BPC121542012
No ratings or reviews yet.
AU $208.00 New
---- Used
OPUS BTC3100 Li-ion 18650 AA AAA NiMH Battery Analyzer Tester
4.9 out of 5 stars based on 74 product ratings
AU $67.50 New
---- Used
LiitoKala Lii-500 Battery Charger
4.7 out of 5 stars based on 7 product ratings
AU $23.99 New
---- Used
PowerTech MB3736 12V 17Ah Jump Starter with Air Compresser LED Light
4.5 out of 5 stars based on 29 product ratings
AU $186.11 New
---- Used
Camelion USB Solar Battery Charger - Black (CABC3001)
4.7 out of 5 stars based on 3 product ratings
AU $18.00 New
---- Used

Save on Battery Chargers

Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Save on Battery Chargers

Victron Blue Smart SLA/LiFePO4 charger 12V 7A BPC120731014R
AU $158.00
Trending at AU $163.16
Camelion Solar Battery Charger for Mobile and USB Power Supply
AU $18.00
Trending at AU $25.75
PowerTech Solar Trickle Charger 12V 1.5W MB3504
AU $37.90
Trending at AU $39.25

Shop by category

Picture 1 of 12

Thunder DCDC 20A Battery Charger with 300W MPPT Solar Regulator - TDR02020

About this product

Product Identifiers

Product Key Features

Additional Product Features

All listings for this product

item 1 Thunder TDR02020 20A DC-DC Charger With MPPT Solar Regulator

item 2 Thunder DC-DC Dual Battery Charger 20A with MPPT Solar and Bonus Midi Fuse Set

item 3 THUNDER 20 Amp DCDC Charger 4x4

Ratings and reviews

Most relevant reviews

Worked better than expected

Amazing unit

Product Reviews Images

Reasonable product

Thunder is robust and trouble free.

affordable technology that works

Best Selling in Battery Chargers

Enerdrive ePOWER DC2DC 12V 40A DC to DC Multi-Stage Battery Charger (EN3DC40+)

Panasonic Eneloop Smart and Quick Battery Charger - K-KJ55MCC4TA

Victron Blue Smart 12V 15A IP22 SLA/LiFePO4 Battery Charger - BPC121542012

OPUS BTC3100 Li-ion 18650 AA AAA NiMH Battery Analyzer Tester

LiitoKala Lii-500 Battery Charger

PowerTech MB3736 12V 17Ah Jump Starter with Air Compresser LED Light

Camelion USB Solar Battery Charger - Black (CABC3001)

Save on Battery Chargers

Victron Blue Smart SLA/LiFePO4 charger 12V 7A BPC120731014R

Camelion Solar Battery Charger for Mobile and USB Power Supply

PowerTech Solar Trickle Charger 12V 1.5W MB3504

You may also like

Battery Batteries & Chargers

Battery Charger Batteries & Chargers

Battery with Charger Batteries & Chargers

Battery Chargers

Mains Chargers Battery Chargers

Lithium Battery Chargers