Marine gel batteries
Marine gel batteries are maintenance-free 12V/6V/2V deep-discharge cells built for vibration and marine conditions. This page maps the boat and yacht range; whether starting and house loads share one battery is application-specific and is not a public claim here. Code scanning lives on the models index. Flooded PzS forklifts and inland deep-cycle proof are not this URL.
Longer warranty. Clearer trust.
Available range
13 · 2–12 V · 40–800 Ah
Technical table
Conflict-free, source-backed catalogue rows. Capacity in Ah (C5 or C10 on the row), dimensions in mm, mass in kg. No stock or delivery claims.
Nova 2–12V 40–800Ah Marine gel battery
| Code | Voltage (V) | Capacity (Ah) | Length (mm) | Width (mm) | Height (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| SMGB-4012 | 12 V | 40 Ah (C10) | 197 mm | 166 mm | 170 mm | 14.5 kg |
| SMGB-5512 | 12 V | 55 Ah (C10) | 220 mm | 172 mm | 235 mm | 20 kg |
| SMGB-6512 | 12 V | 65 Ah (C10) | 350 mm | 167 mm | 179 mm | 22 kg |
| SMGB-10512 | 12 V | 105 Ah (C10) | 325 mm | 170 mm | 215 mm | 33 kg |
| SMGB-12512 | 12 V | 125 Ah (C10) | 355 mm | 170 mm | 225 mm | 37 kg |
| SMGB-15012 | 12 V | 150 Ah (C10) | 550 mm | 110 mm | 290 mm | 50 kg |
| SMGB-20012 | 12 V | 200 Ah (C10) | 500 mm | 226 mm | 235 mm | 65 kg |
| SMGB-2106 | 6 V | 210 Ah (C10) | 280 mm | 175 mm | 280 mm | 34 kg |
| SMGB-3606 | 6 V | 360 Ah (C10) | 280 mm | 175 mm | 280 mm | 40 kg |
| SMGB-2002 | 2 V | 200 Ah (C10) | — | — | — | — |
| SMGB-4002 | 2 V | 400 Ah (C10) | — | — | — | — |
| SMGB-6002 | 2 V | 600 Ah (C10) | — | — | — | — |
| SMGB-8002 | 2 V | 800 Ah (C10) | — | — | — | — |
Applications
- Yacht and boat batteries
- Yacht batteries
Technology
Nova's marine gel range delivers vibration-resistant deep-discharge performance for boat and yacht applications, spanning 40 to 800 Ah. On board, a battery often serves both engine starting and underway house-load duty (electronics/lighting); that dual role calls for a construction that tolerates deep discharge.
How it works
The gel electrolyte structure resists vibration and marine conditions; gas emission during use is minimal and no acid or water needs to be added. Because the electrolyte is fixed in gel form, it offers an added advantage over flooded types under the continuous motion and heel conditions a moving boat produces.
Construction
Gel electrolyte (VRLA) sealed type, vibration-resistant deep-discharge construction; capacity values are stated at the C10 discharge rate.
Limitations
- The charger must use a gel/VRLA-compatible profile; on board, the alternator regulator should also be confirmed compatible with that profile.
- Adding water or acid is neither required nor recommended — the gel construction is sealed.
- Starting and house-load needs can differ; whether one battery can serve both roles should be assessed per application.
Product imagery
Technical matching
Clarify the right family with application and critical dimensions, then request a qualified quote.
- 01
Define the application
Share equipment, duty cycle and operating environment.
- 02
Confirm the dimensions
Align capacity, voltage and critical measures together.
- 03
Request a quote
Route quantity and documentation needs to the right team.
Frequently asked questions
- Does a marine gel battery guarantee both starting and house loads?
- No. Gel construction reduces leak and vibration risk; starting and house-load can be different roles. Whether one battery can cover both is assessed per application.
- How does Marine gel batteries work, and what does the range cover?
- The gel electrolyte structure resists vibration and marine conditions; gas emission during use is minimal and no acid or water needs to be added. Because the electrolyte is fixed in gel form, it offers an added advantage over flooded types under the continuous motion and heel conditions a moving boat produces.
- Which duty classes is Marine gel batteries evaluated for?
- Boats and yachts
- What is the difference between the Marine gel batteries family page and the models list?
- The Marine gel batteries family page explains the chemistry/construction class and the range map. Every model code, series group and technical row lives on that family's /models catalogue; exact dimensions and capacity are confirmed there and on series/SKU pages.
- What limits apply when specifying Marine gel batteries?
- The charger must use a gel/VRLA-compatible profile; on board, the alternator regulator should also be confirmed compatible with that profile. Adding water or acid is neither required nor recommended — the gel construction is sealed. Starting and house-load needs can differ; whether one battery can serve both roles should be assessed per application.