12v Lithium Battery Chargers
Price range: $179.00 through $489.00
The Thor Lithium 12V series is the workhorse of the modern fishing boat. Designed for rigs that utilize multiple 12V batteries for trolling, starting, and house power, these chargers offer independent bank control to ensure every battery gets exactly what it needs—and nothing it doesn’t. No more cooking one battery while the other is still hungry. This is intelligent, set-it-and-forget-it power for the serious outdoorsman.
Select Your Charger
Mode Selection
Easily switch between the battery charging type per bank (2-4 bank chargers only).
Charge Indicators
At a quick glance, you’ll know the status of the Power, Battery Type, and Charging Status of each battery/bank.
IP67 Water-Proof Rated
Marine-grade aluminum and waterproof construction for marine applications.
Auto Shutdown
Once your batteries have reached a full charge, the charger automatically shuts down.
Wake Up Function
Our chargers can wake up your lithium batteries that have entered BMS sleep mode—saving you from a dead day on the water.
Safety Intelligence
Built-in protection against short-circuits, reverse polarity, overcharging, and over-temperature.
Cooling Fan
Aluminum stretched plate and waterproof cooling fan at the bottom of product for better heat dissipation
Nominal AC Input Voltage: 105-125V AC
Nominal AC Input Frequency: 60Hz
Working Temperature Range: -10°C~40°C
Nominal Working Temperature: 25°C
Relative Humidity: 5%~95%
12V Single Bank
- Weight: 7.6 lbs
- Dimensions: 10″ / 4.75″ / 3.5″
12V Three Bank
- Weight: 14.8 lbs
- Dimensions: 10.43″ / 9.65″ / 3.90″
12v Four Bank
- Weight: 17.8 lbs
- Dimensions: 11.97″ / 9.65″ / 3.90″
Our Single Bank Chargers are backed by a one-year warranty.
Our Multi-Bank Chargers are backed by a two-year warranty.
We stand behind all of our products alike—check out our Warranty Page for more information. Our batteries and chargers are built to work as hard as the rest of your rig. If you ever have issues with your battery or charger, please do not hesitate to contact us and we'll see how we can help.
Single Bank (12V 18A)
Perfect for the minimalist or the professional. If you are charging one dedicated house bank, a single LiveScope battery, or an off-grid solar bank, this high-amperage charger gets you back to 100% fast.
Three Bank (12V 10A x3)
The standard for multi-battery 12V setups. Ideal for boats running a 12V cranking battery and two 12V deep-cycle batteries in parallel.
Four Bank (12V 10A x4)
The "all-in-one" solution for complex rigs. This allows you to charge your cranking battery and a full 36V trolling bank (made of three 12V batteries) simultaneously.
Not the right voltage?
If you're looking to bridge a different system, we offer dedicated 12V, 24V, and 36V chargers across our lineup. Ensure your charger voltage matches your battery voltage to prevent system damage.
Questions About
Lithium Chargers?
Yes. Our 12V multi-bank chargers (3-bank and 4-bank) feature independent charging logic for each bank. You can charge a Thor Lithium battery on Bank 1, an AGM cranking battery on Bank 2, and a standard Lead-Acid battery on Bank 3 simultaneously.
Recharge speed depends on the charger’s amperage and your battery’s capacity:
12V Single Bank (18 Amps): Our fastest 12V option. It can fully recharge a 100Ah battery in about 5.5 hours.
12V Three & Four Bank (10 Amps per bank): These will recharge a 100Ah battery in approximately 10 hours.
Formula: Battery Capacity (Ah) ÷ Amps (A) = Charge Time
The 18 Amp Single Bank is a high-output charger designed for users who need a rapid turnaround. It is ideal for large-capacity 12V batteries (100Ah to 300Ah) or for commercial users who need their equipment back in service as quickly as possible.
Yes. If your Thor Lithium battery’s BMS (Battery Management System) has entered Sleep Mode due to low voltage, our chargers are equipped with a BMS Wake-up feature. They send a specific signal to restart the BMS and begin the charging process automatically—no need for jump-starting with another battery.
Absolutely. Our 12V chargers feature an Intelligent PGC Algorithm. Once your batteries reach a full charge, the charger enters a maintenance mode that monitors voltage without overcharging. It’s a “plug and forget” solution that keeps your batteries healthy during winter or long periods of storage.
Yes, the entire on-board 12V line is IP67 Rated. They are built to withstand the high-vibration and high-moisture environments common in boat bilges and RV compartments.
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