Under the re-organization of 1808, the artillery was formed into three Brigades: (1st) Prussian, (2nd) Silesian and (3rd) Brandenburg. At this early stage, all of the Brigades were on a reduced establishment but the intention of the reorganizers was that each should achieve a strength of 12 foot and 3 horse companies, this intention being realized in 1809. Each Brigade also had one Handwerker company on its strength, their task being to repair and maintain the various pieces of artillery equipment. All Guard Artillery units were subordinate to the Brandenburg Brigade.

All companies consisted of eight pieces of artillery, 6 cannon and 2 howitzers and they were sub-divided into 4 sections. The different types of company were numbered within their own consecutive sequences, irrespective of the parent brigades.

There were 4 principal types of ordonance in use, a 12 pdr. cannon, which required a crew of 13; a 6 pdr. cannon with a crew of 9; and 2 types of howitzer, the 7 pdr. and the 10 pdr. with crew requirements of 12 and 15 men respectively. Mobility for a 12 pdr. was provided by an 8 horse team, whilst a 6 pdr. needed a team of 6 horses. The ehavier cannon and howitzers were grouped into 12 pdr. companies, whilst the lighter pieces were in the 6 pdr. foot and horse units. The Horse Artillery differed in that they had an increased establishment of riding horses to enable the gun crews to keep up with the fairly rapid movements of the gun teams. The total complement of men and officers of the three types of units was 116 for a 6 pdr. Horse company; 132 for the 6 pdr. Foot and 184 for the 12 pdr. formations.

During the expansion of 1813, the practice of mixing guns and howitzers was not rigidly adhered to. Many companies, of all calibres, consisted of only cannon, whilst at the same time, the first and only howitzer company was formed. Simultaneously, there was a large increase in the number of types of ordonance employed, although the increase was mainly restricted to fixed pieces in permanent positions. Finally, the term 'Battery' was introduced to replace the slightly misleading one of 'company'.

At the beginning of the Napoleonic Wars the Prussian Army was organized according to the 1792 regulations, with the artillery scattered amongst the infantry, each battalion having one 6 pdr. gun. Attempts to reorganize in 1805, came too late for Jena. During the 1806 campaign there were, however, in addition to the battalion pieces, four regiments of Foot Artillery and one of Horse, each regiment having ten companies. Foot companies had 243 personnel, horse companies had only 215. The foot batteries were equipped with 6 x 12 pdrs. and 2 x 10 pdr. howitzers, the horse batteries with 6 x 6 pdrs. and two 7 pdr. howitzers.

Battalion guns were abolished under the newregulations of 1812, and the Prussian Auxilliary Corps of 1812 was supplied with 4 Foot Batteries each of 6 x 6 pdr. guns and 2 x 7 pdr. howitzers, a half 12 pdr. battery with 3 x 12 pdrs. and one 10 pdr. howitzer, five park and 2 bridge columns.

In early 1813 as mentioned earlier, Prussia had 1,287 artillery pieces of which 93 were 7 pdr. howitzers, 81 were 10 pdr. howitzers, 271 were 6 pdr. guns and 438 were 12 pdr. guns. __ although many of these were fixed fortress guns. In mid-March a figure of 213 field pieces is quoted by the General Staff.

By the end of August, Prussia had 400 field pieces in 50 batteries: 38 foot batteries (30 with 6 pdrs., 6 with 12 pdrs., and one each with 7 pdr. and 10 pdr. howitzers) and 12 horse batteries with 6 pdrs. (There was also a half-battery of 8 pdrs. with the Berlin Landstrum and another horse battery with von Lutzow's Freikorps). In the Spring of 1813 most infantry Brigades had one horse and one foot battery attached, but from autumn that year this was reduced to one 6 pdr. foot battery per brigade. Reserve artillery was held at Corps level.