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Invicta Lithium Batteries

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 (SNL12V20S, SNL12V125S, SNL12B100BT & SNL24V150BT)

Feature & Benefits:

  • Greater number of cycles (2000+) along with greater utilisation of available capacity (up to 100% DoD) depth of discharge, means up to 8 times the cycle life of standard SLA technology
  • Lowering you total cost of ownership.
  • Integrated battery management system (BMS)
  • Provides optimum safety and performance.
  • Safe and stable chemistry
  • The use of LiFePO4 along with an integrated BMS reduces the risk of combustion or explosion due the high impact, overcharging or short circuit situations.
  • Higher energy density means Invicta Lithium is close to half the weight of an equivalent SLA making them ideal for mobility and weight critical applications.
  • Extra fast recharge time and can be charged using most standard SLA charger
  • No need to upgrade your existing charging infrastructure.
  • Rugged plastic flame retardant case & cover.
  • UL1642 at cell level.


  • Mobility devices
  • Caravan and camping
  • Solar energy storage
  • UPS and critical power
  • Personal power packs
  • Medical equipment
Key Benefits Weight (kg) Cycle Life (DOD) Self Discharge (Month) Charge Time (Hour) Capacity Utilisation Life Years Efficiency
Sealed Lead Acid SLA (100Ah) 27.5 >650@50%  Up to 6 8 to 12 50 to 60% 3 to 5 60 to 90%
Lithium Iron Phosphate LiFePO4(100Ah) 12.2 >5000@50% Up t0 12 1 to 3 80 to 100$ >10 96%


Sentry Lithium Batteries
Part Number Description Nominal Voltage (V) Nominal Capacity (Ah) Terminal Length (mm) Width (mm) Height (mm) Weight (kg) Max. Discharge Current (A) Max. Series / Parallel Configuration
SNL12V9 12V 9Ah 12.8 9 F2 151 65 95 1.2 9 4P
SNL12V12S 12V 12Ah with 4 series functionality 12.8 12 F2 151 98 96 1.6 15 4P or 4S
SNL12V20S 12V 20Ah with 4 series functionality 12.8 20  M6  180  76  166  3.0  30  4P or 4S 
SNL12V20BT 12V 20Ah with Bluetooth 12.8 20  M6 180  76  166  3.0  30  4P 
SNL12V24S 12V 24Ah with 4 series functionality 12.8 24  M6  166  176  125  3.4  30  4P or 4S 
SNL12V40S 12V 40Ah with 4 series functionality 12.8 40  M6  194  132  170  5.5  30  4P or 4S 
SNL12V75S 12V 75Ah with 4 series functionality 12.8 75  M8  260  169  215  9.8  50  4P or 4S 
SNL12V100S 12V 100Ah with 4 series functionality 12.8 100  M8  306  168  215  12.2  100  4P or 4S 
SNL12V100BT 12V 100Ah with Bluetooth 12.8 100  M8 306  168  215  12.4  100  4P 
SNL12V125S 12V 125Ah with 4 series functionality 12.8 125  M8 318  165  215  14.8  100  4P or 4S 
SNL12V125BT 12V 125Ah with Bluetooth 12.8 125  M8 318  165  215  15.0  100  4P
SNL12V300BT 12V 300Ah with Bluetooth 12.8 300  M8  518  271  222  35.0  100  4P 
SNL24V150BT 24V 150Ah with Bluetooth 25.6 150  M8  518  271  222  25.0  100  4P 
SNLFT12V50BT Front Terminal 12V 50Ah Bluetooth 12.8 50 M6 277 106 222 6.0 50 4P
SNLFT12V100BT Front Terminal 12V 100Ah Bluetooth 12.8 100 M8 551 109 239 12.4 100 4P


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