DC to DC Battery Charger, 520W, 40A Alternator Charger, Fast DC-DC Charging for Portable Power Stations, Compatible with LiFePO4 Lead-Acid AGM GEL Batteries, for RVs, Cars, Home Backup Power

Fast Charging Performance

This DC to DC charger delivers up to 40A 520W with up to 94% conversion efficiency, restoring your battery faster than traditional car cigarette lighter charging. Ideal for RVs, trailers, home backup power, and off grid systems

Emergency Reverse Charging

Never get stranded. This DC to DC battery charger supports reverse charging from your auxiliary battery if your starter battery runs low. Get back on the road quickly without waiting for roadside assistance

Broad Battery Compatibility

The DC to DC charger is compatible with LiFePO4, Lead Acid, GEL, AGM, and Calcium batteries. It also works with over 95% of portable power stations. Includes 2 DIP switch keys for quick battery type selection

12/24-12/24V Wide Voltage

This DC to DC battery charger supports four charging modes: 12V to 12V, 12V to 24V, 24V to 12V, and 24V to 24V. Designed to meet different charging needs across RVs, campers, trailers, and more

Reliable Charging Protection

Built-in cooling fan keeps this DC to DC charger running smoothly in high temps. The overvoltage, undervoltage, reverse polarity, over-temperature, and short circuit protection help extend battery life for secure charging

All items are dispatched from our warehouse in Melbourne, Australia.   Additional postage charges may apply for rural areas. Under normal conditions, delivery will take between 2-7 business days after dispatch, depending on your location. Remote areas will require a longer delivery time.   You will be given a tracking number once the parcel has been dispatched. Please use it to track the delivery status of your order.   Pick-up is also welcome at our warehouse based in Mitcham, Victoria.   We work with different courier partners to provide reasonable freight costs and quality service. The type of courier used depends on the size and weight of each item as well as the delivery location.   Combined postage for different products is not available as size and weight limitations generally prevent items from being dispatched in one consignment.   We currently dispatch only to addresses within Australia.   We aim to dispatch all products within three business days after your full payment has been made. If you need to cancel a purchase after the product has been dispatched, please note that the postage fee may not be refundable. Additional postage fees may apply for re-delivery or re-direction requests.   If you change your mind about your purchase and wish to return the item after receiving it, please note that applicable freight fees will be deducted from your refund and a 10% re-stocking fee will apply.   Buyers must agree with the above postage and handling terms before purchase.

Change of Mind Returns

1. Yarrasupply will allow a return where you have changed your mind, provided that the item in question is:

- returned within 14 days of receiving the order;

- as new and is not used, worn, or opened and has all original packaging and tags intact (including any package seals (if any) being unbroken);

- in a resalable condition; and

- not damaged in any way.

2. We cannot accept change of mind returns on items that come in sealed packages or boxes where seals are damaged or broken.

3. You will be responsible for the cost and risk of returning goods, including the cost of return shipping. If the item is not received by Yarrasupply, you will not be eligible for a return.

4. You may be provided with a refund only when the returned product is received, and it complies with the requirements outlined above.

5. If the returned item does not meet the conditions of this policy, you will be responsible for the cost of receiving your returned goods back to your nominated address.

INCORRECT OR FAULTY GOODS

Our quality control teams do inspect all deliveries to ensure the products you receive meet our exact quality standards. However, if you do receive a faulty, damaged, or incorrect product, please contact us to arrange a return delivery and a refund or exchange.