Dual Battery Bundle - 100Ah Weekender Lithium Battery, 40A Pro Series DC to DC Charger & Bluetooth Battery Monitor
In Stock - Ready for immediate dispatch or pickup
Pickup Available from Punchbowl, NSW
DETAILS
Overview
The core of a dual battery setup,
in one box.
A 100Ah Weekender Series lithium battery, our 40A Pro Series DC to DC charger and a Bluetooth battery monitor with a 500A shunt.
The charger fills the lithium battery from your alternator as you drive. The monitor shows exactly what’s going in and out, on its screen or your phone.

What’s in the bundle
100A BMS, full 100Ah usable, 5 year warranty.
IP54, silicone potted, rated for under-bonnet mounting.
Screen plus phone app: state of charge, amps and volts.
Why these three
Charge it right, and know where you stand
The Weekender battery runs fridges, lights and inverters up to 1000W from a 100A BMS. The 40A Pro Series charger has a dedicated LiFePO4 charging profile, soft start and BMS wake-up, so the battery is charged properly on every drive.
The monitor’s shunt measures every amp in and out, so you see real state of charge, not just voltage.
- ✓Charger mounts under the bonnet (IP54, silicone potted)
- ✓Battery cells certified to IEC 62619
- ✓Battery suits installs under AS/NZS 3001.2:2022

Compatibility
- ✓12V vehicles with a standard or smart alternator
- ✓Utes, 4WDs, canopies, camper trailers and caravans
- ✓Charger also suits AGM, GEL and lead acid batteries
Not suitable for:
- ✕Mounting the lithium battery under the bonnet
Tech specs
| Battery | 100Ah 12.8V LiFePO4, 1280Wh |
| Battery BMS | 100A continuous |
| Battery size | 330 x 172 x 217 mm |
| Charger | 40A DC to DC, IP54 |
| Charger size | 180 x 108 x 46 mm |
| Monitor | Bluetooth, screen and phone app |
| Shunt | 500A |
| Battery warranty | 5 years |
| Brand | 12 Volt Direct |
What’s included
- ✓1 x 100Ah Weekender Series LiFePO4 Lithium Battery
- ✓1 x 40A Pro Series DC to DC Charger
- ✓1 x Bluetooth Battery Monitor with 500A Shunt and Screen
Cable, fuses or circuit breakers, lugs, battery box or tray and installation are not included. We recommend installation by an auto electrician.
Black Friday bundle. Every item is the same product we sell on its own, with its own full warranty. Each one ships in its own box.
Not sure what you need?
Tell us your vehicle and what you want to run. Our team includes qualified auto electricians.
Contact our teamProduct Details
| SKU | TVD-BUNDLE-DUAL100 |
| Brand | 12 Volt Direct |
| Shipping Weight | 12.7700kg |
| Shipping Width | 0.365m |
| Shipping Height | 0.290m |
| Shipping Length | 0.260m |
12 Volt Direct is a 12 V power specialist for the automotive, 4WD, caravan and off-grid industry. When 12V matters, trust the professionals. 12 Volt Direct was built around a simple idea: 12 V systems should be done properly. Its range is designed for the way Australians power their vehicles, carava...
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