Delkor NS40ZLS/42B19L 

Semi-Sealed, Lead Acid, Maintenance Free Standby Battery

12 Volts (12V)

35Ah

Semi Sealed Maintenance Free

PLEASE NOTE:

The Life Expectancy is 180 Cycles from whatever State Of Charge at Beginning of Discharge to 70% Depth of Discharge!

MANUFACTURER'S WARRANTY IS:

6 Months / 180 Cycles / Loadsheddings (Whichever comes first) in Load Shedding Inverter Application.

BATTERY LIFE EXPECTATION

The battery has a 6 month manufacturer’s warranty (carry-in owing to normal use) / 150 - 180 Cycles @ 70 % Depth of Discharge in Inverter / Standby / UPS Use.

Failure to allow sufficient Recharge Time between Loadshedding Events to achieve at least 90 % State of Charge results in ABNORMAL WEAR AND TEAR  due to the battery continuously and repetitively operating in the lower band of State of Charge. An analogy would be operating the Pneumatic Tyres on your car at low pressure (Voltage is "Electrical Pressure")

Fully Discharged Batteries take +- 8 – 16 Hours to fully recharge at the recommended charge rate of 10 % of Capacity. (+-10% of the battery's capacity on a Wet Cell Calcium Battery)

Batteries failing due to deep discharges and not being allowed to FULLY recharge between loadsheddings will result in battery failures which are not covered by the manufacturer’s warranty.

Batteries take +- 8 – 16 Hours to fully recharge. (+-10% of the battery's capacity charge)

We highly recommend that you size your battery accordingly to make 8-12 hours runtime
This will mean the battery will be at 50 - 70% state of charge at the end of a loadshedding.

We strongly recommend that non-essential items are turned off during loadshedding.

Batteries with reduced runtimes indicate that the battery is reaching / reached it's end of cycle life and should be replaced

General life in standby use during occasional stage 1 - 2 loadshedding: 1 - 2 Years

Design Life: 3 - 5 Years (In standby use, kept on charge, not discharged)

We strongly recommend that non-essential items are turned off during periods of intense loadshedding. Also, Switch off items like the TV set or your computer when sleeping or absent from home, if possible, place the Inverter Charger in "Rest Mode" (Charge, but Do Not Invert) if absent from home or sleeping. Common Sense Prevails!

Batteries with reduced runtimes indicate that the battery is reaching / or is about to reach it's end of cycle life and you should plan a battery replacement