[BC] What is the charging efficiency of SLA batteries?

[John Clary]

I'm checking the burn time for my light setup by using a much bigger
(7Ah instead of 1.3) SLA battery to prevent deep discharge of my
primary battery. I have a 1 A automatic charger that drops to a
trickle charge and lights a green LED when charging is complete. How
much time should I allow to get 1.3 Ah back into the battery after
taking 1.3 Ah out?

--
Opus

My gas is up to $.99 a burrito, $5.99 for premium, and I'm only
getting 20 miles to the regular burrito.

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[John Clary]

On 2/17/07, John Clary wrote:
>
> I'm checking the burn time for my light setup by using a much bigger
> (7Ah instead of 1.3) SLA battery to prevent deep discharge of my
> primary battery. I have a 1 A automatic charger that drops to a
> trickle charge and lights a green LED when charging is complete. How
> much time should I allow to get 1.3 Ah back into the battery after
> taking 1.3 Ah out?
>

Nevermind, I constructed a better Google search string and found my
answer on the first link: SLA batteries have a recharge efficiency of
70 to 95%, depending on the construction of the battery and the
current/voltage profile of the charger. I'm going to assume I have the
worst case setup and by my calculations I should check for a green
light in 1:52 from placing the battery on charge.