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.

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Wirthco 20090 Battery Doctor 75 Amp/100 Amp Isolator , Black

Product ID: 250132075

Details

Brand
WirthCo
Color
Black
Product Dimensions
6.7"D x 10.5"W
Item Weight
1 Pounds
Output Voltage
2.4E+2 Volts

⚡Priority charging for starting battery

💧IP62 water-resistant design

🔋100A high-capacity isolator

€ 182.73

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Description

🔋 Power up your ride with confidence—never get stranded again!

COMPACT YET POWERFUL - Lightweight 454g design fits easily into your vehicle without compromising on 100 Amp capacity.
TRUSTED BY THOUSANDS - Rated 4.4 stars by over 800 users, a proven choice for professional-grade battery isolation.
MANUAL OVERRIDE CONTROL - Take charge with a manual override feature to start your vehicle battery anytime, anywhere.
BUILT TO BRAVE THE ELEMENTS - IP62 water-resistant rating ensures reliable performance even in wet or dusty conditions.
SEAMLESS DUAL BATTERY MANAGEMENT - Automatically charges your auxiliary battery while prioritizing the starter battery for uninterrupted power.

The Wirthco 20090 Battery Doctor is a robust 100 Amp battery isolator designed for efficient dual battery management. Featuring IP62 water resistance, it prioritizes charging your starting battery while automatically maintaining your auxiliary battery. Its manual override ensures you can start your vehicle in any situation, making it an essential upgrade for reliable automotive power management.

Specifications

ASIN	B004QCDE9M
Amperage	100 Amps
Best Sellers Rank	#17,131 in Automotive ( See Top 100 in Automotive ) #78 in Battery Chargers
Brand	WirthCo
Customer Reviews	4.3 4.3 out of 5 stars (155)
Date First Available	29 November 2012
Item Weight	454 g
Item model number	20090
Manufacturer	Battery Doctor
Manufacturer Part Number	20090
Model	Battery Isolator, 100A
OEM Part Number	20090
Product Dimensions	26.67 x 17.02 x 5.84 cm; 453.59 g
Safety Rating	Não Aplicável
Voltage	12 Volts

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€ 182.73

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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