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"Forming" a do you do it?

Old 03-08-2007, 08:43 PM
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Default "Forming" a do you do it?

I have a new 1450mah Hydrimax Rx pack and i want to be sure i take good care of it and get the most out of it. I've heard of people "forming a pack" on the first charge(s?) but I'm not sure I know what that means. Can you enlighten us?

By the way, congrats on teh success of this forum! Looks like there are a lot of us out there with questions and we appreciate your help!

Old 03-10-2007, 12:19 PM
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Default RE: "Forming" a do you do it?

I think what you are talking about is break-in. This pack is NiMhd? If so, the best way to break-in a NiMhd pack is to charge and discharge the pack several times (4-6). You would charge to full capacity. the first charges should be at a slow rate (1/10 c). This means charge at 1/10th the capacity of approximately 145 mah. You only need to be in the ballpark so around 100-150 mah will do. Then you discharge to 1.1 volts per cell or 4.4 volts. Then charge again. repeat this cycle for 4-6 times then move up to 1C for the rest of the charging if you so choose. You can stay at 1/10C if you like.

Many of the commercial chargers today have charge and discharge cycles. They usually will have instructions so you could also follow these.

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