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BB1230 12V to 12V 30A DC DC charger

BB1230 12V to 12V 30A DC DC charger

5(2 ratings)

Best price now

$54.00at Sterling Power ProductsChecked 1 h ago

80% under what the other stores charge

Compared across 9 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $54.00 at Sterling Power Products (checked Nov 12, 2026).
  • Checked at 9 stores.

Our take on the BB1230 12V to 12V 30A DC DC charger

The Enerdrive BB1230 is a 12V-to-12V DC-DC charger rated at 30A. It takes power from a vehicle's alternator or a start battery and charges an auxiliary battery bank in a 4WD, van or boat, with a multi-stage charge profile for lead-acid and lithium batteries. It is a fit-and-forget unit for dual-battery setups where the auxiliary bank needs a proper charge rather than a simple relay. Against basic voltage-sensing relays it adds controlled charging and battery chemistry settings; against bigger combined units it gives up mains charging and solar input.

Best forDual-battery 4WD and touring setupsVans and campers charging a house battery from the alternatorBoats with a separate start and house bankOwners of lithium or AGM auxiliary batteries
Pros
  • 30A output charges an auxiliary bank quickly on the move
  • Multi-stage charging with selectable battery chemistry
  • Compact, sealed unit that mounts near the battery
  • Works from the alternator or a start battery feed
  • Well documented with a detailed instruction manual
Cons
  • No mains or solar input; it is DC-DC only
  • Needs heavy cable and a solid install to deliver full output
  • No Bluetooth or app monitoring on this model
  • Heat build-up in tight engine bays can cut output

BB1230 12V to 12V 30A DC DC charger prices at every store

  • Sterling Power ProductsNew

    In stockReturn policy

    $54.00Checked 1 h ago
    Visit Sterling Power Products
  • Sterling Power USANew

    In stock

    $268.00Checked 1 h ago
    Visit Sterling Power USA
  • Battle Born BatteriesNew

    In stock

    $272.00Free shippingChecked 1 h ago
    Visit Battle Born Batteries
  • Mabru Power SystemsNew

    In stock

    $320.00+ $6.00 shippingChecked 1 h ago
    Visit Mabru Power Systems
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $227.00Free shippingChecked 1 h ago
    Visit Amazon
  • eMarineNew

    Availability unknown

    $246.50Checked 1 h ago
    Visit eMarine
  • WalmartNew

    Availability unknownSold by Bay Marine Supply

    $268.00Checked 1 h ago
    Visit Walmart
  • eBayNew

    Availability unknownSold by bookmarkdeals

    $333.01Checked 1 h ago
    Visit eBay
  • Bedam LeisureNew

    Availability unknownShips from the UK · duties may apply

    $350.00Checked 1 h ago
    Visit Bedam Leisure

Store links may earn us a commission.

BB1230 12V to 12V 30A DC DC charger price history

Lowest price we've seen: $227.00 on Nov 13 at Amazon. Tracked across 8 stores since Nov 13.

What reviewers say

Owners of dual-battery setups rate the BB1230 as a reliable workhorse that keeps an auxiliary battery topped up on long drives. Complaints centre on installation demands and heat rather than charging performance.

What people mention
  • Charging performancePraisedOwners say it keeps a house battery charged on long drives and recovers a flat auxiliary bank.
  • HeatCriticisedReviewers report the unit runs hot and can cut output in a tight, poorly ventilated bay.
  • InstallationMixedOwners find wiring straightforward but say heavy cable and fusing add real cost and effort.
  • Battery profilesPraisedUsers like the selectable chemistry settings for lithium and AGM banks.
  • MonitoringCriticisedSome wish for Bluetooth or remote status instead of relying on the unit's indicators.

About the BB1230 12V to 12V 30A DC DC charger

The BB1230 is a 12V to 12V, 30A battery-to-battery charger from Sterling's B2B range. It charges onboard batteries while the vehicle is running. It is used in commercial vehicles, recreational vehicles and boats.

It connects between the battery being charged from and the battery to be charged. It does not need complex wiring, and it does not touch the alternator or the engine control unit (ECU). It charges the output battery with alternator power and does not take current from the input battery. It uses a 4-stage charging profile.

It is regenerative braking and smart alternator friendly, which suits Euro 5 and Euro 6 engines and newer.

Input/Output
12V to 12V
Charging current
30A
Charging profile
4-stage
Activation modes
Automatic (most non-vehicle uses); manual (remote activation); regenerative braking with ignition feed; automatic regenerative braking with no ignition feed
Compatibility
Regenerative braking and smart alternator systems; Euro 5 / 6 and newer engines
Certification
E marked

Questions and answers

Does the BB1230 charge lithium batteries?
Yes. It has selectable charge profiles that include lithium as well as lead-acid chemistries such as AGM and gel. Set the profile to match your auxiliary battery.
Can it charge from solar or mains?
No. It is a DC-DC charger only, taking 12V input from an alternator or start battery. Solar and mains charging need separate equipment.
What cable size does it need?
Full 30A output needs heavy cable and a suitable fuse close to the source battery. Undersized wiring drops voltage and limits output.
Is it suitable for a 24V system?
No. This is a 12V-to-12V unit. A 24V vehicle needs a different model rated for that input.
Does it need a smart alternator?
It works with both conventional and variable-voltage alternators because it boosts and regulates the charge itself rather than relying on the alternator's output.
Where is the BB1230 12V to 12V 30A DC DC charger cheapest?
At Sterling Power Products, for $54.00, 80% under what the other stores charge, as of our latest check.
What do buyers say about the BB1230 12V to 12V 30A DC DC charger?
Rated 5 out of 5 from 2 ratings.
Where can I buy the BB1230 12V to 12V 30A DC DC charger?
9 stores we checked sell it, including Sterling Power Products, Amazon, eMarine, Sterling Power USA, Walmart.

Stores we've priced the BB1230 12V to 12V 30A DC DC charger at

  • Walmart deals and prices

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