Batteries
Marine Lithium Batteries: Capacity and Price Comparison
Every LiFePO4 battery an Australian boat owner is likely to be quoted, ranked by the only number that compares them honestly: dollars per usable amp-hour. The label capacity is not what you own — you cycle a lithium bank to 80%, so a 100 Ah case gives you 80.
- Cases ranked
- 24
- Cost per usable kWh
- $500 – $1,099
- Last reviewed
- 4 September 2026
Pricing is indicative and not yet independently verified. These bands are compiled from published market pricing rather than quotes we obtained. Confirm with the retailer before you buy. No brand has paid to appear or be ranked here.
Compare exact battery models before buying
Our model-to-model comparisons use source-checked manufacturer specifications and identify the price basis, model generation and any conflicting information.
Compare boat batteries side by side
Start from the size you need
Choose a lithium battery capacity
If you do not know the answer yet, the house bank calculator works it out from your loads. If you do, start here.
How to judge these for yourself
Calculate usable battery capacity and cost
Every battery, cheapest usable amp-hour first
Compare marine lithium battery options
| iTechworld 12 V 200 Ah | 200 Ah | 160 Ah | 2.05 kWh | $850–$1,200 | $500 | $6.41 | claimed |
| iTechworld 12 V 100 Ah | 100 Ah | 80 Ah | 1.02 kWh | $450–$650 | $537 | $6.88 | claimed |
| KickAss 12 V 200 Ah | 200 Ah | 160 Ah | 2.05 kWh | $1,050–$1,450 | $610 | $7.81 | claimed |
| KickAss 12 V 120 Ah | 120 Ah | 96 Ah | 1.23 kWh | $650–$900 | $631 | $8.07 | claimed |
| KickAss 12 V 100 Ah | 100 Ah | 80 Ah | 1.02 kWh | $550–$780 | $649 | $8.31 | claimed |
| Renogy AU 12 V 200 Ah | 200 Ah | 160 Ah | 2.05 kWh | $1,150–$1,600 | $671 | $8.59 | claimed |
| Renogy AU 12 V 100 Ah | 100 Ah | 80 Ah | 1.02 kWh | $600–$850 | $708 | $9.06 | claimed |
| Amptron 12 V 200 Ah | 200 Ah | 160 Ah | 2.05 kWh | $1,250–$1,700 | $720 | $9.22 | claimed |
| Renogy AU 24 V 100 Ah | 100 Ah | 80 Ah | 2.05 kWh | $1,250–$1,700 | $720 | $18.44 | claimed |
| Amptron 12 V 300 Ah | 300 Ah | 240 Ah | 3.07 kWh | $1,950–$2,600 | $741 | $9.48 | claimed |
| Revolution 12 V 200 Ah | 200 Ah | 160 Ah | 2.05 kWh | $1,350–$1,800 | $769 | $9.84 | claimed |
| Revolution 12 V 300 Ah | 300 Ah | 240 Ah | 3.07 kWh | $2,100–$2,750 | $789 | $10.10 | claimed |
| Revolution 12 V 400 Ah | 400 Ah | 320 Ah | 4.10 kWh | $2,800–$3,700 | $793 | $10.16 | claimed |
| Amptron 12 V 100 Ah | 100 Ah | 80 Ah | 1.02 kWh | $680–$950 | $796 | $10.19 | claimed |
| Revolution 12 V 100 Ah | 100 Ah | 80 Ah | 1.02 kWh | $700–$950 | $806 | $10.31 | claimed |
| Enerdrive 12 V 300 Ah | 300 Ah | 240 Ah | 3.07 kWh | $2,600–$3,400 | $977 | $12.50 | claimed |
| Invicta 12 V 200 Ah | 200 Ah | 160 Ah | 2.05 kWh | $1,700–$2,300 | $977 | $12.50 | claimed |
| Invicta 12 V 150 Ah | 150 Ah | 120 Ah | 1.54 kWh | $1,300–$1,750 | $993 | $12.71 | claimed |
| Enerdrive 12 V 200 Ah | 200 Ah | 160 Ah | 2.05 kWh | $1,750–$2,400 | $1,013 | $12.97 | claimed |
| Invicta 12 V 100 Ah | 100 Ah | 80 Ah | 1.02 kWh | $900–$1,250 | $1,050 | $13.44 | claimed |
| Invicta 24 V 100 Ah | 100 Ah | 80 Ah | 2.05 kWh | $1,850–$2,450 | $1,050 | $26.88 | claimed |
| Enerdrive 12 V 125 Ah | 125 Ah | 100 Ah | 1.28 kWh | $1,150–$1,550 | $1,055 | $13.50 | claimed |
| Enerdrive 24 V 100 Ah | 100 Ah | 80 Ah | 2.05 kWh | $1,900–$2,500 | $1,074 | $27.50 | claimed |
| Enerdrive 12 V 100 Ah | 100 Ah | 80 Ah | 1.02 kWh | $950–$1,300 | $1,099 | $14.06 | claimed |
24 rows. Select a column heading to sort.
Both columns use the midpoint of the price band and 80% depth of discharge. Sort on the kilowatt-hour figure when you are comparing across system voltages, because a 24 V case at 100 Ah holds twice the energy of a 12 V one and the amp-hour column would tell you otherwise. Read either alongside warranty and cycle life before concluding the cheap end is good value.