Can this be connected to a car battery then to a lithium battery pack for the purpose of keeping the lithium’s charged? Lithium for car amps

No. Lithium batterie$ need a $pecific charge controller. ($$$)

does the blue light stay on

The blue light indicates that the primary battery is connected to the alternate battery and charging. This happens when (1) the vehicle's ignition is on and (2) the primary battery is being measured at 14V or higher. Also, after turning off the ignition there is a delay of less than a minute before the batteries are isolated. The blue light will remain on until completed

i bought this three months ago. the battery continues to drain. always stays at 11.7 v. i dont know if thing is broken or what. what do i do?

I would not continue to let the batteries drain to 11.7 Volts. Never let you battery bank get lower then 11.9 Volts. I would replace your battery isolator.

Can I use this with a 200 amp alternator or will it hurt the unit

This unto will work fine. Your alternator may be rated for 200 amps. That rating is right before is burns up. There are other loads in your car that will take power while it is running. There is no way your alternator will push 200 amps to your battery.

Desertcart Logo

Deliver to Slovakia

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Description

⚡ Stay charged, stay unstoppable – power your adventures with WirthCo Battery Doctor!

INSTANT MANUAL OVERRIDE - One-button parallel mode for quick jump-starts when you need it most.
POWERFUL 150 AMP PEAK OUTPUT - Delivers robust charging performance for demanding vehicle setups.
MARINE GRADE WATER RESISTANCE - IP62 rating ensures reliable operation even in wet, marine environments.
SMART DUAL BATTERY MANAGEMENT - Automatically isolates and charges auxiliary batteries without manual hassle.
SURGE OVERCURRENT PROTECTION - Safeguards sensitive electronic systems from power spikes and damage.

The WirthCo 1213.1241 Battery Doctor is a compact, high-performance 125/150 Amp battery isolator designed for vehicles with auxiliary batteries. Featuring IP62 water resistance, automatic dual battery charging, manual override for jump-starts, and built-in surge protection, it ensures reliable power management in both automotive and marine environments.

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

€ 262.19

Duties & taxes incl.

Slovakiastore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

ChatGPT - opens in a new tab Perplexity - opens in a new tab Claude - opens in a new tab Grok - opens in a new tab Google AI - opens in a new tab

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews

Manufacturer	WirthCo
Brand	WirthCo
Model	Battery Isolator, 125A
Item Weight	15.2 ounces
Product Dimensions	5.1 x 5.7 x 2.3 inches
Item model number	1213.1241
Is Discontinued By Manufacturer	No
Manufacturer Part Number	010054200929
OEM Part Number	20092
Amperage	150 Amps
Voltage	12 Volts

WirthCo 1213.1241 20092 Battery Doctor 125 Amp/150 Amp Battery Isolator , Black

Description

Specifications

Have a Question? See What Others Asked

Common Questions