| Author | Message | | | eric | | Posted: Wed Aug 30, 2006 8:00 pm Post subject: Sealed lead-acid (SLA) battery charger | | | | Site Admin Joined: 01 Jan 1970 Posts: 311 | Yuasa, Kobe, Sonnenschein
and
Varta are but
a few of
countless
manufacturers
of sealed
lead-acid
(SLA) batteries.
Although
these batteries
have been
around for
many years, their use
in amateur and hobbyists
circles has seen an upsurge
recently because of price cuts in
the surplus trade, at car boot sales
and flea markets. The compact,
easy to handle 6-volt and 12-volt types
with capacity ratings up to 30 Ah can be picked
up cheaply and appear to be the most popular.
SLA batteries require a simple but fairly
unusual charge algorithm for which a low-cost
circuit is described in this article.
26
Design by K. Walraven
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