CR2430 battery equivalents explained from the Energizer and Duracell data sheets: size, voltage and capacity, DL2430 and ECR2430, and why a CR2450 or CR2032 is not a safe swap.
How squash scoring works under the World Squash Singles Rules 2025: point-a-rally to 11, win by 2, serving and service boxes, how the score is called, let vs stroke, and the old scoring to 9 and 15.
How a nautical mile differs from a regular mile: exact lengths from BIPM and NIST, why it is tied to a minute of latitude, quick conversions, knots and where each unit is used.
How to play Boggle by Hasbro’s rules: finding words of 3 or more touching letters, which words are allowed, the points chart, crossing off shared words, the tournament game and the small rules players miss.
SR927SW battery equivalents explained from Energizer’s data sheets: every 395/399 name, 395 vs 399, what the code means, why a 371 won’t do, and a pre-replacement checklist.
How to play Hungry Hungry Hippos by Hasbro’s rules: setup, the turn-by-turn Beginner’s Game, the all-at-once Advanced Game, how the player with the most marbles wins, and how to fix a hippo that pops off.
SR920SW battery equivalents explained from Energizer’s data sheets: the 371, 370, SG6 and V371 names, what the code means, 371 vs 370, and why a 395 won’t fit.
How to play Operation by Hasbro’s classic rules: setup, drawing an ailment card, what happens when the buzzer goes off, solo play and how the player with the most money wins.
CR1632 battery equivalents explained from Energizer’s data sheets: size, voltage and capacity, what the code means, and why a CR1620, CR1616 or CR2032 is not a safe swap.
Note (October 2026): This guide has been updated. Earlier versions understated the lifting capacity of medium-duty wreckers and the price…
How to play Mouse Trap by Hasbro’s rules: setup, what each coloured space does, how Launch-the-Trap and the Cheesy Danger Zone work, the five reset steps, and how to win with six cheese wedges.
SR621SW battery equivalents explained from Energizer’s data sheets: the 364, 363, SG1 and V364 names, what the code means, why a 377 won’t fit, and how long a 364 lasts in testing.