For 25 years, Metalsub has been a manufacturer of diving lights and quick release systems
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Battery tank PR1204

Article number 120401
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Product Information

View product information of Battery tank PR1204


PR12041: A compact battery tank with 4 Ah power and included Quick Release system

The PR1204 is the smallest copy of the Metalsub battery tank series. With 12 Volt and 4 Ah power it delivers a long burning time of 120 minutes when using a 24 Watt lamp head (at full power) up to 40 minutes when using the most powerful 60 Watt Metalsub cable light.

This small but powerful battery tank would be an ideal travel companion, since it won’t take up too much luggage space. Though it provides more than enough power for your dive light while diving.


Despite the compact dimensions of this battery tank, it’s a full member of the Metalsub family:

  • Manufactured from a very high quality aluminum.
  • Equipped with Metalsub's unique anodising layer, according to US Military Standards (MIL-A-8625-E type3 class2). This protective layer is also impregnated with Teflon, which guarantees a high degree of corrosion resistance.
  • Equipped with an overpressure valve, so that any gases which arise during charging can safely leave the battery.
  • Designed according to the "less is more" principle: no unnecessary buttons, lids or openings.
  • The battery tank has only one connection that is used both to connect the (exchangeable) lamp head and to charge the lamp.
  • The streamlined, rounded, minimalist design without sharp edges also ensures that underwater lines and nets do not easily catch on this tank.
  • Equipped with Metalsub's very robust cable light coupling: connect or remove in seconds with just a quarter turn.

Quick Release System

This type of battery tank is equipped with Metalsub's unique Quick Release system. This system provides a very compact, streamlined, strong link between the battery tank and the supplied base plate, which is attached to the diving cylinder. The battery tank can be placed or removed with a single press of the button of the resilient locking pin. No tools needed!

The link is incredibly strong, so you do not have to worry about losing or loosening the battery tank. This quick coupling is also made entirely of hard anodized aluminum and stainless steel. The base plate is provided with thick rubber strips to prevent damage to the diving cylinders and of two types of slots with which it can be attached to the diving cylinder with a standard plastic bottle band or stainless steel clamp band.


Technical specifications

MaterialAluminium, hard-anodized and impregnated with Teflon*
Weight above water1.6 kg
Weight under water1 kg
Maximum dive depth250 meters
Maximum pressure test25 bar
SecurityOverpressure valve for any battery gas leakage
Battery power12V - 4Ah
Charging time battery cells2 hours
Battery chargerMP2500
Capacity with 2400 Lumen LED headca. 110 min**
Capacity with 5100 Lumen LED headca. 45 min**
Capacity with 6350 Lumen LED headca. 40 min**
Mounting optionsQuick Release System
Additional functionsExternal charging via a charging plug
*Anodised in accordance with American Military Standard MIL-A-8625-E type 3 class 2 and impregnated with Teflon, which guarantees a high degree of corrosion resistance.
**Measured at a full power dimming position and at a water temperature of 20ÂșC.


Parts for the Battery tank PR1204

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