Westin 47-3800 Dual Battery System
Key features
- •HELPING HAND: Off-roading can take a serious toll on batteries, so carrying an extra is a safe bet. This system makes sure you take advantage of the available power.
- •INCLUDED: All wiring, mounting hardware, and switches are included with this kit!
- •RATING: This system is rated at 250 amps.
- •REGULATOR: The dual battery system regulates the voltage across the connected batteries.
- •SAFETY: The system has a manual override feature and built-in safety protection.
Westin 47-3800 Dual Battery System
List Price: $285.60$257.04DEALYou Save: $28.56 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 22, 2026In Stock (1)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers4.5
out of 5
Based on 10 reviews
5★
80%
4★
10%
3★
0%
2★
0%
1★
10%
Highly recommend!!!
Soung W. Lim•October 30, 2017
It's working well!!
Great Product
Woody H.•September 22, 2017
Installed on my 1997 holiday rambler vacationer. Works great. Charges batteries from the alternator and also charges from the rear battery charger. Alternator went out and i started my generator and charged the from battery from the rear forcing the batteries together. Got home 500 miles with no alternator. Great produc
Pleasantly surprised.
Lee•May 5, 2017
I didn't realize this kit also came with enough 4 AWG wire to complete the install, so that was a pleasant surprise. I also installed into a Lexus GX470 and it works great. Very happy especially considering the price.
Nice
Eyo Moh•January 10, 2017
Good stuff easy to install and it contains everything you need. If you have a very long vehicle you may need extra cable.
I have this unit installed with a renogy solar panel ...
2013 FRONTIER PRO4X•October 12, 2016
I have this unit installed with a renogy solar panel and plan on getting an ARB fridge to complete my overlanding system. My only complaint, because I"m going blind I guess is the instructions have a tiny font, you may need a magnifying glass or 20-10 vision.
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