Elite:Dangerous. Shield class vs offline charging speed

Introduction

Anaconda with class 3A up to class 7A shield generator, all around 600MJ (so 50% is around 300MJ) achieved with shield boosters. Offline shields will come back online exactly at 50% of total shield strength and offline shields charge much faster than online. Online shields charge at steady 1 MJ/sec speed if there is enough energy in SYS capacitor.

Also after you lose shields they will start charging only after 17 second delay, so shields do not charge the second you lose them but there is a delay.

Difference between different rating shields is 7,5%:

A D rated shield is 7.5% stronger than an E rated shield of the same class.

A C rated shield is 15% stronger than an E rated shield of the same class.

A B rated shield is 22.5% stronger than an E rated shield of the same class.

An A rated shield is 30% stronger than an E rated shield of the same class.

And remember that online shield total strength is determined by how many pips you have in SYS - 4 pips vs 0 pips will allow you to absorb 2,5 times more damage so under heavy fire it's crucial to keep 4 pips to SYS.

Test

Shield	Recharge Time in sec	Speed MJ/sec	50 % MJ/sec	Shield Strength MJ
A7	74.38	4.00	297.5	595
A6	94.12	3.20	301	602
A5	118.58	2.50	296.5	593
A4	158.42	1.90	301	602
A3	186.93	1.60	299	598

Video