Description
The Large Lithium dual battery kit is for boats, cars, 4WDs, trucks, Vans, RVs, or general automotive & marine applications. The True® Lithium 140 Amp Voltage Sensitive Relay offers Priority charging for your Primary/starting battery, can be used with Alternators with outputs up to 150 amps.
The True Lithium dual battery kit offers
- automatic battery management
- easy to install lithium dual battery system with a wiring diagram
- Waterproof cable
- shockproof, casing, and
- heat resistant cables for safe and efficient use of the auxiliary battery system.
Everything needed to connect a second lithium battery located as far as 20 feet from the primary battery.
Includes:
- 1 True® Smart Lithium Battery Isolator with mounting screws
- 20 feet #6 high flex red cable with tinned copper cable lugs
- 3 feet #6 high flex black cable with tinned copper cable lugs
- 2 positive brass alloy battery terminal ends
- 2 negative brass alloy battery terminal end
- 3 loose crimp on tinned copper cable lugs
- 4 sections of adhesive lined shrink tube
- 5 zip ties
- 1 installation instructions booklet
This True® lithium dual battery kit comes packed in a heavyweight zip bag for installer/consumer use.
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Luis in Colorado –
I bought this to separate my engine’s start battery bank from an RV auxiliary battery that powers the generator. These two battery banks were initially intended to be connected to one another for charging purposes rather than being isolated. Because the auxiliary battery had a lower capacity, it could drain the chassis battery during extended periods of storage, leaving the battery dead. The two batteries are now separated from one another by the battery isolator unless the chassis battery is receiving a charging voltage from the engine alternator or another charging source. The auxiliary battery is then given the full charging voltage by the battery isolator as required, enabling it to recharge.
Joyce Colbs –
The lithium dual battery isolator has operated according to plan. The wet cell starting battery is also properly charged, and the lithium batteries can be charged without overtaxing the alternator. Also, it stops the wet cell starting battery from being overcharged when using the generator or shore power.
When upgrading to multiple lithium batteries on a motorhome, the Large Lithium Dual Battery Kit is required. If not, you risk overworking your alternator or charging your new lithium batteries too slowly.
Pualina Trotter –
We mounted this on our F450 to aid in fifth-wheel lithium battery charging. So far, it has been performing excellently. The only concern is the F450’s lack of instructions.
Marcus –
My 2nd purchase of the Lithium dual batter yisolator, and by far the greatest one in terms of functionality! An essential item if you have two batteries. Without a doubt, I would purchase again!
Mark –
The opposite battery jump option has saved my bacon several times. It works as described. Use with my Lifepo4 and BMS. Charges my batteries while I drive. Worth every cent!
Jonathan Gray –
It seems to operate well and is simple to install. Have been on the truck for several months. Seems to be functioning well. There were no difficulties with drainage.
John Harryson –
This Lithium dual battery isolator has fulfilled its promise to the letter. Maintaining my auxiliary batteries charged and ready for both remote work locations and camping has not presented any problems for me.
Steve Brown –
This is a good feature since it isolates the two lithium batteries and connects them automatically. The button’s operation is a touch complex, but the rest of the product is fantastic.
Kelly Stirling –
This is an excellent Lithium dual battery isolator. I used it briefly in my pickup before switching to Lifepo4 batteries. My lead acid crank battery had a dead cell, which emptied my auxiliary battery within a day or two. I can say the emergency button works; follow the directions…..I wish there was a model that isolates at greater voltages for lithium-ion batteries.
Kelly Anderson –
I’ve utilized my van’s house batteries with this True Smart Lithium Battery Isolator. It transfers power from the main battery to the lithium ones in the vehicle, and thus far there have been no problems. I’m replacing every AGM battery I have with a single 300 amp lithium battery.
I was just curious if it would work for the lithium and not harm them all.
Many thanks ahead of time
Chris North –
Simple to put up. Ideal for my spare 8d lithium battery, which runs the appliances, lights, and charges in the van. No matter what the van is operating on, there is always enough alternator power to charge the backup. To get the most out of the dual lithium battery arrangement, take care when wiring the lithium battery isolator.
Charles Picard –
This was installed in a full-size 2010 GMC Sierra, and the second battery is a marine battery. It functions well and was reasonably simple to setup. In the kit, everything was included. The one modification I made was to solder the eyelets onto the wire rather than attempting to crimp them. To accomplish that, simply heat up the eyelets with a tiny butane flame and insert solder until it is bonded. superior electrical contact compared to crimping.