Technical Manual

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Battery Load Voltage vs. DOD
Note that these voltages are approximate and will vary as the battery ages. They are, however, a fair indicator of state of charge and can be used when setting low voltage alarms or disconnects. For example, if the average load is 50A and the battery ...
SOC (%) vs. OCV

Document No. 6-0101 Rev. F Page 24 of 40

5.9 Servicing

Lifeline® AGM batteries do not need electrolyte adjustment as do flooded lead-acid batteries,

but periodic servicing is essential to assure continued integrity of the battery system. Servicing

should include good record keeping to document the life history of the battery system and to

identify whether corrective action needs to be taken.

The following servicing schedule is recommended:

Installation

1. Within the first week of operation, put the battery system on a full charge cycle and record

the following parameters (baseline readings):

a. Charger amperage output

b. Absorption voltage at battery system terminals

c. Float voltage at battery system terminals

d. Ripple voltage at battery system terminals (see Note 1)

e. Voltage of each battery when charger is in float mode (see Note 2)

f. Ambient temperature

2. Allow the battery system to discharge until it reaches the low voltage disconnect, and record

the following parameters:

a. Run time

b. Capacity delivered (Ampere-hours)

c. Average DC load (amperes)

d. Endpoint voltage at battery system terminals

3. After discharging, return the battery to a fully charged condition as soon as possible.

Quarterly

1. Inspect each battery terminal for any corrosion deposits. If present, remove with a wire

brush, neutralize with a baking soda solution, dry, and then apply NO-OX-ID grease. If

connections are loose or had to be loosened to remove corrosion deposits, re-torque

terminal bolts to the values given in Section 4.2.

2. Record the following parameters with the battery on float charge:

a. Float voltage at battery system terminals

b. Voltage of each battery (see Note 2)

c. Ambient temperature

Yearly

1. Put the battery on a full charge cycle and record the following parameters: