Tube Sonar - Weighing Up Battery Power Alternatives

[IrishFloatTube]

The picture shows three packs.
The small one is GP1300s - a 1.3 amp/hour capacity.
The medium one is GP2200s - a 2.2 amp/hour capacity.
The big one is GP3300s (new version 4300) - a 3.3 amp/hour capacity.

Weight comparisons:
Gel Cell 7 ah ... 2450g / 5lbs 6 oz
GP3300s ... 600g / 1lbs 5 oz
GP2200s ... 500g / 1lbs 1 oz
GP1300s ... 200g / under 8oz

The picture shows the size, they are all a fraction of the bulk and weight of my previous battery technology.

So lets plug in and switch on and see what happpens ...
[signature]