Lithium house battery comparison
Enerdrive B-TEC Ultra 100Ah vs Invicta Xero 100Ah
Both are 100Ah lithium house-bank candidates. The useful distinction is installation fit and system integration, not a claimed capacity advantage: Enerdrive publishes a lower, wider case; Invicta a narrower, taller one. Compare actual dealer quotes before treating the displayed sale price and RRP as an equal price comparison.
Specification-based comparison. We have not bench-tested these models. Prices are dated observations, not live offers. Read the manufacturer sources and editorial policy.
Which battery should you shortlist?
Option 1
Enerdrive B-TEC Ultra 100Ah
EPL-100BT-12V-G3
Shortlist the Ultra if its lower case fits your compartment and your installer supports its charging and monitoring setup. Confirm the clearance above its terminals before buying.
Option 2
Invicta Xero 100Ah
SNLX12V100BT
Shortlist Xero if the narrower footprint suits your tray and its documented communication and bank configuration meet your plan. Obtain a selling-price quote and current warranty terms.
Battery specifications compared
Manufacturer-published figures, checked 2 October 2026. Missing or contradictory details are identified explicitly.
| Specification | Enerdrive B-TEC Ultra 100Ah | Invicta Xero 100Ah |
|---|---|---|
| Exact model | EPL-100BT-12V-G3 | SNLX12V100BT |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated capacity | 100Ah | 100Ah at 12.8V |
| Published discharge current | 150A at 25°C | 150A maximum |
| Maximum charging current | 100A at 25°C | 100A |
| Dimensions (L × W × H) | 309 × 213 × 170mm (published dimensions) | 308 × 168 × 211mm; 220mm to terminals (±2mm) |
| Weight | 12.0kg | 12.5kg |
| Ingress protection | IP67 | IP67 |
| Monitoring | Bluetooth; CAN/RS485 | Bluetooth; CAN/RS485 |
| Published warranty | 5 years; conditions apply | Confirm current Xero terms with supplier |
Enerdrive B-TEC Ultra 100Ah: This is the G3 Ultra, not the older G2 or Slimline 100Ah. Use the EPL-100BT-12V-G3 column: larger Ultra batteries have different current limits. The published height needs checking against the installation drawing and terminal clearance. Check manufacturer details ↗
Invicta Xero 100Ah: Xero SNLX12V100BT is different from Invicta Black, Compact and the older SNL12V100S. The datasheet distinguishes case height from terminal height. Its maximum discharge rating is reproduced as labelled, rather than silently relabelled as a tested continuous result. Check manufacturer details ↗
Australian prices and quote checks
Enerdrive B-TEC Ultra 100Ah
$839.70 AUD
Manufacturer online sale price, including tax; delivery extra. Observed 2 October 2026, not a market-wide lowest-price claim.
Check price source ↗Invicta Xero 100Ah
$1,099 AUD RRP
Manufacturer recommended retail price including GST, not a dealer quote or confirmed selling price. Checked 2 October 2026.
Check price source ↗Source links on this page are direct references, not affiliate tracking links. Compare delivered prices on the same day and obtain a separate scope for installation, charging changes and protection.
Which 100Ah battery fits your boat?
These packs may have the same capacity label, but a narrow access hatch can decide the purchase. Make a full-size cardboard template of each case and check the route into the locker, not only the floor area. Allow additional space for lugs, cable bends, restraints and servicing.
Invicta explicitly separates case and terminal heights. Enerdrive's product table gives a single height. Do not subtract those numbers and assume the difference is usable clearance: ask for the installation drawings so the measurements refer to the same physical points.
Current limits and monitoring need a system check
A 150A headline is not proof that either battery can run every inverter labelled for a 12V system. Your installer must account for input current at the actual operating voltage, startup demand, cable losses and the protection scheme. The manufacturer's terminology and operating conditions matter.
Both list communications interfaces, but having a CAN connection does not establish compatibility with your display or inverter. Ask which protocol, cable and firmware combination is supported. We have not tested either app, so this comparison makes no claim that one is easier to use.
Is the Ultra better value than Xero?
The captured Ultra price is a manufacturer sale price; the Xero figure is an RRP. They are different kinds of evidence. Obtain two comparable delivered quotes, including any mounting accessories and communication cables, before calculating a price difference.
For a boat owner, a written support route can matter as much as the initial invoice. Ask who diagnoses a fault, whether an installed unit must be removed for assessment, and how freight is handled. No dealer-response or durability tests underpin this comparison.
Common battery comparison questions
Are these the older Enerdrive and Invicta 100Ah batteries?
No. This comparison identifies Enerdrive EPL-100BT-12V-G3 and Invicta SNLX12V100BT. Specifications from G2, Slimline, Black or older Invicta models should not be substituted.
Does either have more capacity?
Both are rated 100Ah. Actual delivered energy depends on test conditions and system settings. We have not independently capacity-tested either model.
Sources and comparison method
We matched the exact model codes to the manufacturer documents below on 2 October 2026. The selection advice is our interpretation of those specifications. We have not measured capacity, durability, waterproofing or service quality. We do not turn manufacturer cycle claims into a tested lifespan ranking.
- Enerdrive: B-TEC Ultra model specifications and 100Ah price ↗
- Invicta: SNLX12V100BT specification sheet ↗
- Invicta: Australian range and RRP ↗
Specifications, offers and warranty terms can change. Match the supplied unit to its current manual before purchase. Report a correction with the model code and source.
Plan your battery purchase
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