Renogy DCC30S 12V 30A DC-DC Charger with MPPT
SVT Score, Mid
A 12 V, 30 A charger that feeds a house battery from the alternator or from up to 400 W of solar through its own MPPT controller.
$187
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Usability
5.7 out of 10Its 30 A output works out to 384 W at 12.8 V, so it scores 4 on capacity.
Better on capacityRenogy DCC50S DC-DC Charger50 A output works out to 640 W at 12.8 V. $307.99Scores 8.0Renogy's product page for the line prints 94 percent charging efficiency against the manual's 'up to 97 percent', and the lower figure scores, so it scores 4 on efficiency.
It has a smart-alternator (Euro 6) mode that starts above 12.0 V and stops below 11.5 V, but those thresholds are fixed, so it scores 8 on operating range.
It takes up to 400 W of solar through MPPT and reaches Bluetooth only through the add-on BT-2 module, with no galvanic isolation, no published IP rating and no parallel mode, so it scores 6 on features.
Intertek's directory lists the RBC30D1S to UL 1741 and CSA C22.2 No. 107.1, a US listing and a Canadian one held by model, so it scores 8 on verification.
Renogy's product page and its current warranty document both give 3 years for materials and workmanship, so it scores 4 on warranty and support.
Renogy sets warranty terms by model, for the original buyer only, and takes unused renogy.com orders back within 30 days, lithium batteries within 7.
$186.99 at renogy.com.
Two inputs, 30 amps, Bluetooth extra
The RBC30D1S is Renogy's DCC30S, a 12 V charger that fills a van or RV house battery from the alternator or from solar panels through its built-in MPPT controller.
It suits a buyer with a 12 V van or truck camper, a few hundred watts of 12 V panels and a modest alternator who wants one box for both charging sources, and who will not need more than 30 A, a 24 V bank or built-in Bluetooth.
Strengths
- Charges from the alternator or up to 400 W of solar through one MPPT unit
- Smart-alternatorEuro 6) mode from 12 V input
- 3-year material and workmanship warranty on page and warranty document
- Charge current settable to 3020 or 10 A
- Under 30 mA idle draw
Drawbacks
- 94 percent efficiency on Renogy's line pageagainst 'up to 97 percent' in the manual
- Bluetooth only through the separately sold BT-2 module
- Solar and alternator each capped at 15 A when both are charging
- No published IP rating and no galvanic isolation
- 30 V solar limitso two 12 V panels in series exceed it
Specs
- CapacityNot applicable
- AC OutputNot applicable
- System Voltage12 V
- Panel PowerNot applicable
- Charge Current30-39 A
- Safety ListingCSA 107.1 listed, UL 1741 listed
- Cell TypeNot applicable
- Low-Temp ChargingNot applicable
- Warranty3 Years
- MonitoringBluetooth add-on
- Weight3.1 lb
At a glance
- M8 x 1.25 terminal studs
- 244 x 146 x 77 mm case
- Solar cut-off below 7 A
- Sold with Renogy ONE Core
Renogy is the brand of RNG International, Inc., of Ontario, California, which Dr. Yi Li founded in 2010.
It sells direct from renogy.com and its Amazon and eBay brand stores, and through Home Depot, Lowe's, Best Buy, Camping World and Walmart's marketplace.
The Renogy DCC30S (RBC30D1S) is a 12 V dual-input charger that charges a house battery at up to 30 A from a vehicle's starter battery and alternator, or from solar panels through a built-in MPPT controller. Renogy's manual rates solar input at up to 30 V and 400 W, alternator input at 13.2 to 16 V for a traditional alternator and 12 to 16 V for a smart (Euro 6) alternator, and charging efficiency at up to 97 percent; Renogy's product page for the line prints 94 percent. In smart-alternator mode, with the IGN signal wire fitted, it starts charging once the starter battery holds above 12.0 V for 15 seconds and stops below 11.5 V (13.2 V and 12.7 V for a traditional alternator). When solar and alternator both feed it, each supplies at most 15 A, and below 7 A of solar current a low-current cut-off hands charging to the alternator. Charge current can be set to 30, 20 or 10 A, and profiles cover AGM, gel, flooded, lithium and a user-defined setting. It measures 9.61 x 5.75 x 3.03 in (244 x 146 x 77 mm), weighs 3.11 lb, uses M8 x 1.25 terminal studs and a common negative, and draws under 30 mA idle. Phone monitoring needs Renogy's separately sold BT-2 Bluetooth module on its RS485 port. Renogy sells it alone at $186.99, with the BT-2 module at $214.99 and with the BT-2 and a Renogy ONE Core at $399.99.
Questions answered from our data
Is Renogy good?We list 58 Renogy products and score 58 of them. Their overall scores run from 3.7 to 6.6, with a median of 5.4, against a median of 5.4 for all 58 products we score.
How much does a DC-DC charger cost?The 7 dc dc chargers we list run from $141 to $410, with a median of $206.
Are DC-DC chargers UL listed?Two of the 7 dc dc chargers we list carry a UL 458-type listing we could look up by model.- Which DC-DC chargers have Bluetooth?Five of the 7 dc dc chargers we list offer Bluetooth monitoring, built in or as the maker's add-on.
