Go get:
Battery Reference Book 3rd ed. - T. Crompton (2000) WW.pdf
from over on alt.binaries.e-book.technical

Fantastic battery book on a huge range of batteries, including those
mysterious beasts some boater told you needed servicing in the bilge.....

Pay the book no attention that it doesn't cover some $800 10A boat battery
charger from the slick talkin' salesman at Waste Marine.... This book is
about real life batteries...not boat parts sales gimmicks.

Man, those forklift batteries just wreak of POWER!

"POWER is our friend", you know!