Invicta Lithium Series

Invicta Lithium Series Now With 7-Year Warranty, Bluetooth Functionality & IEC Certification

Invicta Lithium is a premium range of the highest quality Lithium Iron Phosphate (LiFePO4) composition. Lithium Iron Phosphate (LiFePO4) was selected for our Invicta range due to its inherent safety features. When comparing LiFePO4 to other Lithium technologies there are some distinct safety advantages. These advantages include greater tolerance to both high temperatures and abuse such as overcharging, short circuit and penetration. As a result of these features the risk of fire is extremely low even under harsh circumstances.

As well as utilising LiFePO4 technology, the Invicta lithium range of batteries also includes a built in Battery Monitoring System (BMS) to further protect against over charge or discharge, over temperature and short circuit all critical for the safety of the battery. As an added benefit, Phosphate is not a hazardous material and so is friendly both to the environment and health.

The Invicta Lithium range now comes with IEC Certification on both the BMS and Cells*. This certification has been obtained through thorough testing of the product and a complete audit of the factory. The IEC Certification is a huge tick of approval for safety and quality, and peace of mind.

The Invicta Lithium range comes with all the benefits of LiFePO4 composition in either the standard 12V SLA case sizes or 24V versions for larger applications.

With 3.2V per cell the Invicta Lithium range is ideally suited for replacement of equivalent size SLA with the extra benefits of up to 8 times the cycle life, greater utilisation of available capacity through increased Depth of Discharge (DOD) and fast charging. All of this at close to half the weight makes them ideal for deep cycle and mobility applications.

With the all new SNL range you can even monitor the health and status of your batteries on your phone via Bluetooth wireless communication.

*IEC Certification on selected models only

Click to see the dedicated Invicta website

Feature & Benefits

  • IEC Certification on the combination of BMS and individual cell for complete safety peace of mind
  • High energy density (less than half the weight of SLA) lowering total weight of application
  • Fast recharge, battery is charged and ready to be used sooner
  • Flat discharge curve, longer run time and more efficient use of capacity
  • Extremely low self-discharge rate, can sit unused for longer periods of time
  • Large numbers of cycles >2000 (100% DoD), up to 8 times cycle life of SLA lowering your total cost of ownership
  • Safe and stable chemistry and integrated BMS, the use of LiFePO4 along with integrated BMS ensures protection against over charge/discharge, temperature and short circuit providing the highest degree of safety.
  • Bluetooth versions available, monitor the health and state of your battery from your phone
  • Greater capacity utilisation 60% more than SLA, gives longer runtime than equivilent SLA


  • Mobility Devices
  • Caravan and camping
  • Solar energy Storage
  • UPS and Critical power
  • Personal power packs
  • Medical Equipment

SPB Invicta Lithium Brochure

SPB Invicta BT Series Instructions

SPB Invicta S Series Instructions

SPB Invicta Lithium FAQ’s

SPB Invicta Warranty Registration Form

SPB Invicta Warranty Statement

Model Description Length Width Height Terminal
Weight Kgs
SNL12V9S Invicta 12V9AH 151 65 95 F2 12.8 9 9.0 4P or 4S 1.2
SNL12V12S Invicta 12V12AH with 4 series functionality 151 98 96 F2 12.8 12 15.0 4P or 4S 1.6
SNL12V20S Invicta 12V20AH with 4 series functionality 180 76 166 M6 12.8 20 25.0 4P or 4S 3.0
SNL12V20BT Invicta 12V20AH with Bluetooth 180 76 166 M6 12.8 20 30.0 4P 3.0
SNL12V24S Invicta 12V24AH with 4 series functionality 166 176 125 M6 12.8 24 30.0 4P or 4S 3.4
SNL12V40S Invicta 12V40AH with 4 series functionality 194 132 170 M6 12.8 40 50.0 4P or 4S 5.5
SNL12V40BT Invicta 12V40AH with Bluetooth 194 132 170 M6 12.8 40 50.0 4P 5.5
SNL12V75S Invicta 12V75AH with 4 series functionality 260 169 215 M8 12.8 75 50.0 4P or 4S 9.8
SNL12V100S Invicta 12V100AH with 4 series functionality 306 168 216 M8 12.8 100 95.0 4P or 4S 12.2
SNL12V100BT Invicta 12V100AH with Bluetooth 306 168 216 M8 12.8 100 95.0 4P 12.2
SNL12V125S Invicta 12V125AH with 4 series functionality 318 165 215 M8 12.8 125 95.0 4P or 4S 14.8
SNL12V125BT Invicta 12V125AH with Bluetooth 318 165 215 M8 12.8 125 100 4P 14.8
SNL12V200BT Invicta 12V200AH with Bluetooth 483 170 241 M8 12.8 200 180 4P 24.2
SNL12V300BT Invicta 12V300AH with Bluetooth 518 271 222 M8 12.8 300 200.0 4P 35.0
SNLFT12V50BT Invicta 12V50AH Slimline with Bluetooth 277 106 222 M6 12.8 50 50 4P 6.0
SNLFT12V100BT Invicta 12V100AH Slimline with Bluetooth 551 109 239 M8 12.8 100 95 4P 12.4
SNL24V50BT Invicta 24V50AH with Bluetooth 318 165 215 M8 25.6 50 50 4P 12.8
SNL24V100BT Invicta 24V100AH with Bluetooth 485 170 245 M8 25.6 100 100 4P 24.2
SNL24V150BT Invicta 24V150AH with Bluetooth 518 271 222 M8 25.6 150 95 4P 35.0
SNL36V50BT Invicta 36V50AH with Bluetooth 485 170 245 M8 38.4 50 50 4P 17.0
SNL36V100BT Invicta 36V100AH with Bluetooth 520 269 220 M8 38.4 100 100 4P 37.7