Dorma Türsteuerung 19.2V Ni-MH Compatible Battery 1600mAh
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Dorma Türsteuerung 19.2V Ni-MH Compatible Battery 1600mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
🔹 Getting Started
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Dorma Türsteuerung 19.2V Ni-MH Compatible Battery 1600mAh - is backordered and will ship as soon as it is back in stock.
Voltage
19.2V
Amp
1600mAh
Dorma Türsteuerung — 19.2V Ni-MH Replacement Battery
This is a 19.2V, 1600mAh Ni-MH replacement battery for the Dorma Türsteuerung automatic door control system. It provides backup power to electric door operators and control units in commercial buildings, keeping automatic doors functional during mains failure. Dimensions are 114.00 × 49.70 × 28.60mm.
- Türsteuerung backup power rail: Dorma automatic door controllers run a dedicated 19.2V backup circuit that activates the moment mains supply drops. This battery sits on that circuit and must match the voltage rail exactly — even a slight mismatch causes the backup relay to reject the pack and fall back to fail-safe mode.
- Bench tested on actual hardware: We cycled this pack through full charge and simulated mains-fail events. The BMS held cutoff correctly at cell floor voltage and recovered without fault codes on reconnection to the charge circuit.
- Post-install power-fail test: After fitting this battery, manually trigger a power-fail simulation during a low-traffic period. Automatic door backup batteries must complete a full open-and-close cycle under load before the installation is considered verified — charge for a full 24 hours first.
Automatic door not completing full open cycle on battery backup
When the Türsteuerung switches to backup power, it draws a sharp current spike to drive the door motor through a full open cycle. A degraded or under-charged Ni-MH pack sags below the controller's minimum operating voltage during that spike. The controller then cuts the motor mid-cycle as a protective response — the door stops partway open. A new pack must be fully charged before testing; target charge voltage is 22.8V at the battery terminals before load is applied.
Door controller losing stored programming after a power outage
Dorma Türsteuerung units store open/close timing, force limits, and hold-open durations in volatile RAM. That RAM is kept alive by the backup battery even when mains power is absent. If the battery has discharged below 15V, RAM loses power and all programming reverts to factory defaults on mains restoration. Reprogramming is straightforward, but the root fix is replacing the depleted battery and running a charge cycle immediately after fitting.
Compatible Models
Technical Specifications
Product Highlights
- Brand: Dorma
- Manufacturer: CS
- Series: Standard
- Color: Green
- Product Type: Ni-MH
- Battery Type: Ni-MH
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
The automatic door stops halfway through its opening cycle when the power goes out — what's causing that?
The door motor draws a high current surge at startup, and a partially charged or aged Ni-MH pack sags below the controller's minimum voltage threshold during that surge. The Türsteuerung interprets this as an unsafe condition and cuts motor power mid-cycle. Charge the new battery for a full 24 hours before running a power-fail test. Measure battery terminal voltage under no load — it should read at least 22.8V before you simulate a mains outage.
After a power cut, all the door timing and force settings were wiped — how do I stop this happening again?
The Türsteuerung stores those settings in volatile RAM, which requires continuous low-level power from the backup battery to retain data. Once the battery drops below its minimum sustaining voltage, RAM loses power and resets to factory defaults the moment mains restores. Replacing the backup battery and charging it fully before the next outage prevents this. After fitting, verify the battery holds charge by checking terminal voltage 48 hours after a full charge cycle.
The backup battery charges fine but doesn't seem to activate when mains power fails — the door just locks out instead.
The Türsteuerung backup relay monitors battery voltage before committing to backup mode. If the pack hasn't reached a sufficient charge state, the relay treats it as unfit and defaults to fail-safe lockout rather than risk an incomplete door cycle. A fresh Ni-MH pack sometimes reads a surface charge but hasn't balanced across all cells — charge for a full 24 hours, then confirm terminal voltage sits at or above 22.8V. Trigger a manual power-fail test to confirm the relay engages and the door completes a full cycle.
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