International specifications
Input AC parameters on grid
Input voltage range : 50 to 140 Vac / 150 to 265 Vac
Input frequency  : 45 to 65 Hz (auto sensing)
Input current max. : 16 Aac (transfer relay)
Input current adjusted : 10 Aac (115Vac), 10 Aac (230Vac) – factory setting
transfer time :  < 15 ms, on grid to off grid
Output AC :  parameter off grid
Output voltage : 100-130Vac / 200-245Vac (pure sine wave +/- 2%)
Output frequency : 50 Hz / 60 Hz +/- 0.05% (crystal controlled)
Harmonic distortion : < 2%
Continues power @ 25°C : 550 VA
Power 30min. @ 25°C : 900 VA
Maximum load : up to short circuit
Maximum asymmetric load : up to P cont.
Load detection (Stand by) : 10 W
Cos φ : 0.1 – 1
Maximum efficiency : 93% (dc/ac conversion mode)
Consumption stand-by/on : 1.5 W / 8 W
Overload + short-circuit protection : automatic disconnecting with 3 restart attempts
Overheat protection : warning before shut-down with automatic restart
Operating temperature : +10 to 45°C
Relative Humidity : 0 to 85% non- condensing
Acoustic level : < 40 dB
Battery power unit
Battery type : LFP – Lithium Iron Phosphate (LiFePO4)
Nominal battery voltage : 24 Vdc
Nominal capacity : 100 Ah
Volume Energy Density : 177 Wh/l
Gravimetric Power Density : 107 Wh/kg
status 01-2017
We reserve the right to make any modifications to the product without prior notification.
Typical charge current 8 Adc – factory setting
Working temperature : 0 to 45°C, 32 to 113°F
Emergency charge current : 3 Adc (special STROMTANK charger necessitated)*
Battery Management System : Flex-BMS, single cell control, active balancing 5A
Terminal area
AC output receptacles : 3x Hubbell duplex, Hospital spec. grade
3x Furutech High performance Schuko sockets
AC output fuse : thermal – magnetic circuit breaker
AC input connection : ICE 320 – C14 (fuse 16/10AT)
Interface : CAN (RJ45-8 type “Com bus”)*, USB*
Charge connector : use STROMTANK charger only
Power switch : on/off (“on” = green LED)
Safety key switch : key switch “Release/Lock” all functions**
Additional Features
Color meteorit-gray (other colors on request)
Weight 61 kg / 134 lbs
Dimension (w x h x d) 48 x 45 x 30 cm / 19 x 17 x 12 inches

Product Description

The Stromtank makes your dreams come true.

Audiophiles are always looking for clean, undisturbed grid power to achieve the next level of music quality with their hifi systems.

One of the most important facts to hear the excellent quality of your audio-components is the purity and stability of the grid signal. Daily routine equipment like PCs or microwave influence the grid. Everyone is connected to the same dirty grid polluted with DC voltage, high level and frequencies. All interferences manipulate audio-quality and even the best power conditioners are not able to eliminate the disturbances.

Audiophiles were waiting until deep in the night for a less-disturbed AC-grid to get good sound.

Don’t wait until midnight to get the best sound!

The Stromtank is a high-power battery pack with integrated pure-sine wave converter power supply – totally disconnects your audio system from the grid.

With Stromtank S 2500 you can enjoy up to 6 hours listening to music before it connects uninterrupted and automatically with the grid to recharge.

The perfect addition for your audio-setup

the recharging process you can listen without any interruptions. Even when the Stromtank is connected to the grid, the current pulses are not taken directly from the grid – they are absorbed by the battery. In the AC-connected mode the Stromtank creates a stable AC-supply (amplitude and frequency) and has less interaction between the grid and your audio-/video-setup.

Premium home theatre equipment quality will improve both visually and sonically with the Stromtank.