The Helio 12v 100ah Lithium Battery is a 12.8V LiFePO4 battery storing 1.28kWh for backup and off-grid use. The THS1.2 model from Helio Battery suits homeowners, smallholdings and installers across South Africa.
It powers fridges, lights, Wi-Fi routers and small tools from one compact 10.5kg unit. Compare LiFePO4 options across our Solar Batteries range before you choose.
Helio 12v 100ah Lithium Battery Benefits
As a lithium iron phosphate 12v battery, it handles daily cycling on backup and solar duty. Three gains matter most on small 12V backup and off-grid systems.
- Long service, with ≥3000 cycles at 70% DOD.
- Steady 1280W discharge for fridges, lights and Wi-Fi routers.
- Compact size fits cabins, caravans and 4×4 canopies.
Installers comparing a 12v deep cycle battery 100ah should check the test conditions behind the cycle figure. Its rating assumes 25°C and 0.5C, so hot rooms and heavy loads can reduce the cycles you see.
Key Specifications at a Glance
- Model: THS1.2
- Nominal Voltage: 12.8V
- Rated Capacity: 100Ah
- Rated Energy: 1.28kWh
- Maximum Operating Current: 100A
- Design Life: ≥3 years
- Charge Power: 640W
- Discharge Power: 1280W
- Cycle Life: ≥3000 cycles @ 70% DOD, 25°C, 0.5C
- Working Temperature: -20°C to 55°C
- Operating/Storage Humidity: ≤95% RH
- Max Operating Altitude: ≤2000m
- Cell Technology: LiFePO4, Lithium Iron Phosphate
- IP Rating: IP20
- Certification: UN38.3, MSDS
- Size: 306 × 167 × 216mm
- Weight: 10.5kg
- Manufacturer Warranty: 2 Years Limited Warranty
Measuring 306 × 167 × 216mm, the unit fits a shelf or cabinet in a cabin. Install it at an altitude of ≤2000m, with humidity at ≤95% RH.
Compatibility And Fit For 12V Systems
This 12v lithium battery runs 12V systems with inverters and charge controllers set to a LiFePO4 charge profile. From the Helio Battery lithium range, this model works as a 12v battery for power inverter builds. An Esener 1kW 12V inverter fits inside the 1280W discharge limit.
Sizing a 12v lithium battery
A 1.5kW 12V inverter needs its load kept under 1280W. Push past that, and the battery protection cuts supply under heavy load. Set the charger or MPPT controller to about 50A or less, because charge power is 640W.
Keep it away from 48V hybrid inverters, since it won’t work with them directly. It’s not a car starter battery either, so use it for deep cycle duty only. Check your loads with our solar panel and battery calculator before you order.
Best Use Cases For Backup Power
Many homeowners start searching when Eskom supply drops and an old lead acid battery dies. This solar 12v battery can replace it once the charger uses a LiFePO4 profile. On camping and 4×4 trips, it runs a 12V fridge and lights from inside the vehicle or caravan.
- Homeowners keeping fridges, lights and Wi-Fi routers running.
- Smallholdings and farms powering guard huts and small tools.
- Installers fitting cabins and remote off-grid sites.
Some installers want a full system rather than a battery alone. Our 12V solar package range covers matched off-grid setups.
Warranty Compliance And Trust
Each unit carries a 2 Years Limited Warranty and a design life of ≥3 years. The battery lists UN38.3, the UN lithium battery transport test, plus an MSDS for handling and storage. Its IP20 enclosure rating means indoor mounting only, within -20°C to 55°C.
A registered person wires any fixed installation to SANS 10142-1 and issues the Certificate of Compliance. That duty sits in the Electrical Installation Regulations, so the CoC is never supplied with the battery.
Solar Panel Energy includes free system sizing and load calculations with every quote. Stock ships with nationwide delivery in 2 to 5 working days. Stock is held in 7 warehouses across South Africa for collection.
Order the Helio 12v 100ah Lithium Battery today and check stock before your next install. Ask us for a 12v lithium battery price with free sizing.
Last Updated: October 2026
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