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Exclusive BMS, developed by Offroad Living, this battery has 175A continuous output and 320A surge, allowing for the running of a 2000W Inverter on a single battery - other LiFePO4 batteries on the market require TWO batteries to run an inverter of this size. This means you can run appliances such as your coffee machine, toaster, kettle and sandwich makers*.
- Can be discharged safely by 80%, meaning that it is equivalent to a 160Ah AGM yet weighs less than half the weight.
- Maintenance free with 2000+ life cycles
This battery is the perfect option for those serious about 4WDing, camping or caravanning. Contact us for advice on switching from AGM! Custom cabling can also be provided upon request.
NB. These are true deep cycle batteries and are not suitable as cranking batteries. If you do not need to run a 2000W inverter from a single battery please check out our 100-200Amp 100ah LiFePO4 battery option. Contact us if you are unsure of which you require. Read More...
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* as all appliances are different please contact us for confirmation on your specific brand/model
Q. Can these batteries be used in parallel or series?
A. Yes. You can have up to 6 x 100ah batteries and 4 x 150ah in parallel, and 2 batteries in series.
Q. What charger do I use for these batteries?
A. (NB. We are authorised resellers for Redarc, Projecta, Victron, Enerdrive and Ctek, contact us for a quote). The charger I would recommend really depends on what solar panels (watts and voltage) you have (or plan to have) and whether you prefer to have a multi input unit or individual standalone units. The Victron Easysolar 12/1600/70 for example has a 50A MPPT solar controller, 240v to 70A DC charger, AC distribution & circuit protection and a 1200W pure sine wave inverter all in one unit (data sheet attached). It doesn't deal with alternator charging though and would need a separate unit.
The Enerdrive ePOWER DC2DC+ unit has a 40A MPPT and also input for charging from your alternator. It can take a maximum of 35A of solar input using 20Voc panels but can take 12v to to 48V nominal panels, doesn't have a 240v charger.
The Redarc Manager 30 has MPPT, alternator and AC charging in 1 unit. There is no real limit to the solar input, but the unit will only use 520w of solar during charging. Realistically most fixed solar panels will produce around 80% of their max current anyway so you could have up to about 650W plugged in.
Please drop us a line and I will chat with you about the best option for your needs.
Q. You have two models of 100ah LiFePO4, 100/200A and 175/320A. What are the differences?
A. The cells are identical in both models. Only the BMS is different. The BMS materials and cell connectors for the 175A model are heavier duty to handle the higher discharge current and the BMS protection settings are obviously different too for the higher output. They can be connected in series to produce 24v packs with 3 in parallel (ie 300ah @ 24V) or up to 6 in parallel (600ah @12v)
Q. Do these batteries have cell balancing?
A. Yes these do have internal cell balancing which is controlled by the BMS. During manufacturing of all brands of LiFePO4 cells you will always get some level of differential impedance even in cells produced in the same manufacturing batch. The BMS monitors the individual impedance and state of each cell of each and ensures each cell obtains the same max voltage during charging.
Q. Do these batteries have a high and low voltage cutout? Or is external protection required?
A. The BMS also controls the very low voltage cutout and disconnects the cells at 10.0V. Likewise, if any cell was to reach 2.5V it would also disconnect the cells to protect them from damage from excess discharge. If you want to protect the cells by disconnecting essential or non-essential loads from the battery at a particular pre-set or adjustable voltage point to maximise the life cycles of the battery (which is highly) advisable. There are a number of options for this. I recommend Enerdrive or Victron units depending on the application and current disconnect requirement (contact us for pricing on these units).