Victron AGM Deep Cycle Telecom Battery 12V/115Ah (M8)

The deep cycle AGM telecom series has been designed for use in telecom systems. With front access terminals and small footprint, the batteries are ideal for racked systems. Similarly, these batteries can help solve limited floor space and access problems on board boats and vehicles. AGM technology
AGM stands for Absorbent Glass Mat. In these batteries the electrolyte is absorbed into a glass-fiber mat between the plates by capillary action.  Low self-discharge
Because of the use of lead calcium grids and high purity materials, Victron VRLA batteries can be stored during long periods of time without recharge. The rate of self-discharge is less than 2% per month at 20°C. The self-discharge doubles for every increase in temperature with 10°C. Low internal resistance
Accepts very high charge and discharge rates. 

High cyclic life capability
More than 500 cycles at 50% depth of discharge.

https://www.victronenergy.com/upload/documents/Batteries-2021-12-29.pdf

https://www.victronenergy.com/upload/documents/ISO9001-certificate-2021-EN.pdf

https://www.victronenergy.com/upload/documents/Datasheet-Telecom-batteries-EN.pdf

https://www.victronenergy.com/upload/documents/Material-Safety-Data-Sheet-VRLA-Battery-EN.pdf