Informatie over agm & lithium
The house battery — the heart of your system
The battery is the center of your electrical system. All electricity generated by your solar panels, supplied by the alternator while driving, and coming from shore power, is stored in the battery. From that same battery, you power all your consumers — refrigerator, lighting, laptop, water pump, and everything else. The choice of the right battery determines how much you can use, how long you can go without external power, and how heavy your system will be.
AGM — proven technology for light to medium use
AGM stands for Absorbed Glass Mat — a type of lead-acid battery where the battery acid is absorbed into glass mat fibers. AGM batteries are virtually maintenance-free, barely off-gas, and are resistant to the shocks and vibrations of driving. The downside: an AGM battery should not be discharged deeper than 50% without significantly reducing its lifespan. Thus, only 50Ah of a 100Ah AGM is usable. Our AGM batteries are from Victron Energy.
Lithium LiFePO4 — more capacity, less weight, longer lifespan
Lithium iron phosphate (LiFePO4) is the most modern battery technology for off-grid use. A lithium battery can be fully discharged — the full 100Ah of a 100Ah battery is actually available. Lithium is up to three times lighter than a comparable AGM battery. The lifespan is 2000–3000 charge cycles, compared to 300–500 for AGM. We carry lithium batteries from Victron Energy and Ultimatron — both brands deliver proven quality for demanding off-grid use.
M8 or post terminals — which connection type suits you?
Our lithium batteries are available with M8 bolts or post terminals. M8 bolts offer a sturdy, fixed connection and are often used in permanent installations where the cable is attached with a lug. Post terminals are the classic connection type — easy to connect without tools. Which type you choose depends on the lugs and wiring you already have or plan to use.
How much capacity do you need?
Calculate the consumption of all your devices in watt-hours (Wh) per day and take two to three times that number as a guideline for your battery capacity. With AGM, only 50% is usable — with lithium, it's 100%. For light use, a 90–100Ah AGM or a 60Ah lithium battery is sufficient. For more intensive use with a refrigerator, laptop, and 230V appliances, you typically need 100–150Ah lithium.
* Applies to current models in our range. Check the product page for specifications per model.