Replies to post #16046 on Charlestowne Premium Beverages Inc. (FPWM)

[dfh]

Interesting. Thanks Bob. Still hope for lead acid in a number of applications.

Summary

The SLA serves a market in which newer battery chemistries would either be too expensive and the upkeep too demanding. A modern replacement may simply be too delicate and fail prematurely due to harsh environment. For applications such as wheelchairs, scooters and small UPS units, the SLA has not found a suitable replacement that is both rugged and cost effective. But like any other battery, the SLA exhibits weaknesses and has needs that must be met to obtain a long and reliable service. They are:

* Always keep the SLA charged. Never store below 2,10 V/cell.

* Avoid repeated deep discharges. Charge more often.

* If repeated deep discharges cannot be avoided, use a larger battery to ease the strain.

* Prevent sulphation and grid corrosion by choosing the correct charge and float voltages.