Tianneng TNEP12-28 AGM-gel-cyclic lead-acid battery 12V / 28Ah

Der Tianneng TNEP12-28 AGM Gel Cyclic Lead-Acid Battery 12V / 28Ah is a high-performance, maintenance-free energy storage solution for applications involving regular charging and discharging cycles. Thanks to modern AGM (Absorbent Glass Mat) technology, the battery offers high cycle stability, low self-discharge and reliable performance – ideal for solar systems, electric vehicles, cleaning machines, UPS systems and numerous industrial applications. AGM batteries are leak-proof, can be used in any position and are characterised by a high level of operational reliability. ([akkuman.de](https://www.akkuman.de/shop/akkus/akku-blei-gel-agm/xcell/?utm_source=chatgpt.com))

The Tianneng TNEP12-28 has been specially developed for cyclic applications and impresses with its robust construction and long service life. The sealed VRLA (Valve Regulated Lead Acid) system eliminates the need for topping up with water and ensures virtually maintenance-free operation. The high-quality workmanship ensures a reliable power supply even under demanding operating conditions. ([akkuman.de](https://www.akkuman.de/shop/akkus/akku-blei-gel-agm/xcell/?utm_source=chatgpt.com))

Key features at a glance

• 12V / 28Ah: High-performance AGM lead-acid battery for cyclic applications.
• AGM technology: Electrolyte bound in glass fibre mat – leak-proof and maintenance-free.
• High cycle stability: Ideal for frequent charging and discharging.
• VRLA system: Valve-regulated and fully sealed.
• Low self-discharge: High operational readiness even after prolonged storage.
• Position-independent operation: Can be operated in almost any position (except permanently upside down).
• Robust ABS housing: Shock-resistant and durable.
• Versatile: Suitable for solar, leisure, industrial and security applications.

Areas of application

The Tianneng TNEP12-28 is ideal for:

• Photovoltaic and solar storage systems
• Electric vehicles and e-mobility
• UPS systems and emergency power supply
• Cleaning machines and lifting platforms
• Alarm, security and medical technology
• Camping, leisure and mobile power supply

Installation & Safety Instructions

• Only charge using a suitable AGM charger.
• Avoid short circuits and deep discharge.
• Protect from direct heat and open flames.
• Always ensure the terminals are connected with the correct polarity.
• Recharge regularly during prolonged storage.

Features

FAQs on the Tianneng TNEP12-28 AGM gel cyclic lead-acid battery

What does AGM technology mean?

In AGM batteries, the electrolyte is completely bound within a glass fibre mat. This makes the battery leak-proof, maintenance-free and particularly resistant to vibration. ([akkuman.de](https://www.akkuman.de/shop/akkus/akku-blei-gel-agm/xcell/?utm_source=chatgpt.com))

What applications is the battery suitable for?

The Tianneng TNEP12-28 has been specially developed for cyclic applications and is suitable for, amongst other things, solar installations, electric vehicles, UPS systems, cleaning machines, recreational vehicles and numerous industrial applications.

Does the battery require maintenance?

No. Thanks to VRLA-AGM technology, the battery is completely sealed and maintenance-free. It is not necessary to top up the water. ([akkuman.de](https://www.akkuman.de/shop/akkus/akku-blei-gel-agm/xcell/?utm_source=chatgpt.com))

Can the battery be used whilst lying flat?

Yes. AGM batteries can be used in almost any installation position. The only exception is permanent installation in an upside-down position, which is not recommended. ([akkushop.de](https://www.akkushop.de/panasonic-lc-xc1228p-akku-12-volt-28ah-cycle-zyklenfeste-ausfuehrung/?utm_source=chatgpt.com))