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About this product
Product Identifiers
BrandTHUNDER
MPNTDR02020
Ean9315275901640
GTIN9315275901640
ModelTDR02020
eBay Product ID (ePID)4032780661
Product Key Features
Compatible Battery Sizes12V
TypeChargers, Solar Regulator
Additional Product Features
Max. Compatible Appliance Wattage300W
Ratings and reviews
Most relevant reviews
- 26 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.Verified purchase: YesCondition: New
- 07 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.
Verified purchase: YesCondition: New
- 27 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: YesCondition: New
- 11 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: YesCondition: New
- 29 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 priceVerified purchase: YesCondition: New
- 11 Sep, 2019
excellent battery companion
Works great and so easy to set up second one i have purchased and I have put in cars does everything asked of it would certainly recommendVerified purchase: YesCondition: New
- 25 Jan, 2017
Very happy with item
Very detailed listing made thigs so easy to decide this was the right unit for the job fantastic price. Am that happy with it i will be buying a second one for my brothers car. On top of that very happy with the very very quick postage. Not one bad thing to say. CheersVerified purchase: YesCondition: New
- 18 Sep, 2019
Thunder dcdc charger
Great item. Easy to set up . Works very well on solar to keep charge in second batteryVerified purchase: YesCondition: New
- 18 Feb, 2021
Best value dcdc charger on the market.
Awsome product, can't fault it. Have one in my 4x4 running for 6 years without fault, bought a second one for my work car.Why pay 700 bucks for a red arc when this does the same job for just over 200 bucks. Can't beat itVerified purchase: YesCondition: New
- 30 May, 2020
money well spent !!!
keeps my 100 Ah charged after running a 12vFridge on max overnight. 10-15 min drive back to full with fridge still running .Verified purchase: YesCondition: New
