Lithium battery LiFePo4 40Ah with LCD screen
Why buy this?
- Cylindrical batteries – better heat dissipation for batteries less than 50Ah.
- Premium cells – top grade cylindrical cells from a leading brand.
- High level protection – with built in 50 amp battery management system to look after the battery.
- Easy monitoring – thanks to integrated LCD display, which shows voltage and state of charge.
What's included?
- 40Ah LiFePO4 battery.
- M8 battery bolts and washers.
- Integrated LCD display.
- User manual.
Features of lithium battery - LiFePO4 - 40Ah
Superior Battery Management System (BMS) manufactured by Smartec, the market leading BMS specialist. The longevity and safety of this system gives you peace of mind.
High rate of charge making it ideal for boats which often have large or twin alternators. Each battery can charge at 50 amps, meaning 4 batteries in parallel can charge at 200 amps.
High rate of continuous discharge of 50 amps with pulse current of 100 amps. Ideal for high load applications such as boat electric winches or windlasses. In normal applications this means the internal wiring is comfortably oversized giving you peace of mind.
High end grade A cylindrical cells sourced directly from the leading manufacturers.
Easy monitoring via integrated LCD screen.
Advantages of lithium LiFePO4 vs lead acid
3x lighter making it ideal for campervans and boats where weight can be important.
[A 100Ah lithium battery should be 90% utilised i.e 90Ah is useable. A lead acid battery of 180Ah should only be 50% utilised i.e. 90Ah useable. Therefore a 100Ah lithium battery weighing 10kg is equivalent to a 180Ah lead acid battery weighing about 30kg.]
1.8x more power when comparing a 100Ah LiFePO4 battery with a 100Ah lead acid battery.
[A 100Ah lithium battery should be 90% utilised i.e 90Ah is useable. A 100Ah lead acid battery should only be 50% utilised i.e. 50Ah useable. Therefore a LiFePO4 battery has 1.8x more power.]
Lower cost as at face value some 100Ah deep cycle lead acid batteries are less expensive than a 100Ah LiFePO4. But after comparing like with like, you are likely to find LiFePO4 is significantly less expensive.
[Adjustments needed to compare like with like:
1) Usable capacity – A 100Ah lithium battery should be 90% utilised i.e 90Ah is useable. A 100Ah lead acid battery should only be 50% utilised i.e. 50Ah useable. Therefore you need to compare a 100Ah LiFePO4 price with a 180Ah lead acid deep cycle battery.
2) Life expectancy – LiFePO4 are likely to last at least 2x longer than quality deep cycle lead acid batteries such as Trojan or Rolls.
3) Charge speed – LiFePO4 can charge faster than lead acid due to its much lower internal resistance. So a 100W solar panel might put 80W into a LiFePO4 battery compared to a lead acid only charging at 60W.]
3x longer life as LiFePO4 lasts for more cycles than lead acid. LiFePO4 is is also more tolerant to part cycles where the battery is not charged to 100% after each discharge.
[Lead acid likes to be kept at 100% charge, whereas LiFePO4 lasts longer if kept in the 20-90% range.]
Bigger loads are typically possible on LiFePO4 batteries.
[Lead acid batteries tend to suffer from voltage drop when placed under higher loads.]
Accreditations
Compliant with Restriction of Hazardous Substances (RoHS) in Electrical and Electronic Equipment.
European CE approved – assessed to meet high safety, health, and environmental protection requirements.
ISO 9001 is accreditation for companies to ensure management excellence in continually monitoring, managing and improving the quality of their products.
ISO 14001 is accreditation for organisations to clarify the best practices for reducing their environmental footprint by adopting an effective environmental management system (EMS).
Compatibility
- 1 battery maximum in series.
- 16 batteries maximum in parallel.
- Should not be mixed with other manufacturers’ LiFePO4 batteries.
- Recommend to combine batteries of the same age in a battery system.
JohnJohn –
Replaced my mum’s mobility scooter battery. Much cheaper than the manufacturer version. Perfect!