Lithium type battery packs:

All packs ship at the 40% charged level, this is a safe level for shipment purposes and also for storage.

If not needed right away, it is ok to leave at 40% for 4 months. It is also ok to charge to 80% and let sit for 6 months plus.

Charge pack to 80-100% when display shows 45-60%. Do not charge pack after every use, use the charge % on the display and plan your charging per use accordingly.

Expect 120 spins before re-charging.

There is no monthly trickle charging required, the lithium-ion cells are ok to sit for long periods of time without maintenance.

Always be present when charging. Lithium-ion cells are extremely volatile.

Lead Acid type battery packs:

All packs ship at the 100% charged level.

Charge every month to maintain battery condition. It is ok to charge this pack after each use or after the event, it just depends on battery age/usage/charge maintenance schedule.

Expect 60 spins before re-charging.

There are a few charger model versions from over the years of building:

•  First generation has a digital read out. When plugged in, it will read TEST for a short amount of time then cycle a 60-minute count down starting with H060, then H059, etc.

• Second generation has a set of lights representing 25%/50%/75%/100%, this unit will also enter a trickle charge routine if left plugged in with all lights lit. If all lights are blinking, check the connector and make sure the wiring/contacts are not compromised. If the connections looks ok, you will need to take the pack apart and see if a battery has a bad cell by load testing each battery individually.

• Third and fourth generations simply show red when charging and green when charged.

 At every season’s end, remove the handle and lid to inspect the batteries posts. Apply grease and/or remove all buss bars to clean any corrosion. This is a great time to load test each battery to see if a bad cell has developed.