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Rechargeable subsea battery packs that outlast the deployment
When a seabed instrument has to stay down longer than its batteries allow, recovering it to swap cells is expensive. ANIK charges in place — from a cable, solar, or wind — carries the load like a UPS, and reports its own health over RS-485. Deploy it, top it up on site, and leave it. Depth-rated to 6,000 m.
Why rechargeable
The cost isn’t energy — it’s the recovery trip
Most subsea instruments run on primary (single-use) cells. When they go flat you send a vessel, recover the instrument, open it, swap the cells, reseal, and redeploy. One operator put the cost of a single swap at an hour of technician time on deck — every deployment, on top of the vessel time to get there.
ANIK is rechargeable. It tops up in place over a wide 5–65 V input, so the instrument stays down and keeps working. The saving isn’t energy density — it’s the recovery trips you don’t make.
What wins deployments
Four things that make long dwell practical
- In-place charging, 5–65 V (incl. solar & wind)Recharge without recovery, from a cable or from renewables. For shallow deployments, a floating solar panel makes duration effectively open-ended.
- Sub-40 µA sleep currentDuty-cycled instruments sleep most of the time. Ultra-low standby draw is what makes year-long deployments possible.
- Power-path / UPS behaviourCharges and powers the instrument at the same time, and takes over automatically if the external supply droops — no interruption, and no separate power board to build yourself.
- RS-485 / MODBUS health monitoringRead state of charge and battery health before you commit a vessel to a recovery. Onboard DIA diagnostics flag problems early.
Choose your capacity
Three capacities — including the 1.8 kWh ANIK1800
ANIK100 (100 Wh) suits compact, low-draw loggers; ANIK500 (500 Wh) covers typical mid-duration instruments; and ANIK1800 (1.8 kWh) is the workhorse for long-dwell, high-capacity deployments — the pack that turns a marginal power budget into a comfortable one. Need more? Packs parallel-scale with no external circuitry, and all three come in 1000 m, 2000 m, and 6000 m depth-rated builds, tested to UN 38.3. For how to choose, see our subsea battery pack buyer’s guide.
| ANIK100 | ANIK500 | ANIK1800 | |
|---|---|---|---|
| Capacity | 100 Wh | 500 Wh | 1800 Wh |
| Configuration | 6S1P | 5S6P | 5S19P |
| Nominal voltage | 22 V | 18 V | 18 V |
| Max discharge | 20 A | 20 A | 20 A |
| Diameter | 90 mm | 90 mm | 150 mm |
| Height | 150 mm | 470 mm | 470 mm |
| Weight (Al, in air) | 1.2 kg | 4.3 kg | 12 kg |
| Depth options | 1000/2000/6000 m | 1000/2000/6000 m | 1000/2000/6000 m |
Built for
Non-cabled seabed instruments
ANIK is built for stationary, non-cabled subsea instruments that must stay down far longer than primary cells allow: passive acoustic monitoring and hydrophone arrays, eDNA samplers, seabed observation nodes, CTD and water-quality loggers, met-ocean moorings and data buoys, and oil-in-water monitoring.
You supply the sensor; ANIK supplies the rechargeable, self-monitoring power architecture around it.
Energy-budget calculator
Estimate the battery you need — and how in-situ charging can extend a deployment.
In the field
Where ANIK is deployed
Deep-node integration in Japan
eDNA sampler integrations delivered
Instrument packages by a marine engineering firm
Selected deployments, described without customer names pending permission.
Tell us your depth and duration — we’ll spec the pack
Send your instrument’s average power draw, deployment duration, and depth, and we’ll recommend the right ANIK configuration.
Specifications
ANIK at a glance
- Chemistry
- Lithium-ion
- Capacities
- 100 / 500 / 1800 Wh
- Depth rating
- up to 6000 m (1000 / 2000 / 6000 m options)
- Charge input
- 5–65 V (adjustable)
- Output
- Unregulated or 12 / 24 / 48 V
- Standby current
- < 40 µA
- Cycle life
- > 700 cycles
- Communication
- RS-485 / MODBUS
- Housing
- Aluminium / Titanium / Plastic
- Operating temp.
- -15 to 55 °C
- Certification
- UN 38.3
Specifications subject to change without notice.
Lifecycle
ANIK Battery Renewal Program
When your ANIK packs reach end of life, there’s no need to replace the whole system. Return them to RemoteCon and we keep the proven enclosure, connectors, and electronics and fit fresh cells — restoring full capacity at a fraction of the cost of a new pack. Better for your budget and better for the ocean: less e-waste, no re-qualification of new hardware, and a longer service life from every unit.
Ask about battery renewal →FAQ
Subsea battery pack FAQs
How deep can ANIK subsea battery packs be deployed?
Every ANIK pack is offered in 1000 m, 2000 m, and 6000 m depth-rated versions, with Aluminium, Titanium, or Plastic housings matched to the deployment depth.
Are ANIK battery packs rechargeable?
Yes. ANIK is a rechargeable lithium-ion subsea battery pack with in-application charging over a wide 5 to 65 V input, so it recharges in place, including from solar or wind, without recovering or opening the instrument.
How long can a deployment last on one ANIK pack?
It depends on your instrument's average power draw and the pack capacity: divide usable watt-hours by average watts to estimate runtime. Because ANIK recharges in place from a cable, solar, or wind, shallow deployments can run effectively open-ended. Use the energy-budget calculator above for a quick estimate.
What capacities are available?
Three standard capacities: ANIK100 (100 Wh), ANIK500 (500 Wh), and ANIK1800 (1.8 kWh). Packs parallel-scale with no external circuitry, and custom configurations are available on request.
Can ANIK power a hydrophone, CTD, or seabed monitoring node?
Yes. ANIK supplies the rechargeable, self-monitoring power architecture around your own customer-supplied sensors: hydrophones and passive acoustic recorders, CTDs and water-quality loggers, eDNA samplers, and seabed observation nodes.
How is battery health monitored?
Onboard diagnostics (DIA) log voltage, current, temperature, and state of charge and report over RS-485 / MODBUS, so you can check pack health before committing a vessel to a recovery.
What safety certification does ANIK carry?
ANIK uses lithium-ion cells with integrated battery management and cell balancing, and is tested to UN 38.3 for safe transport.
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