About Internal Batteries
Many HOBI Labs instruments contain rechargeable batteries. With the exception of certain HydroBatt battery packs, all use Nickel-Cadmium (NiCad) cells. Except as noted, the information here applies to the internal NiCad batteries in HydroScat-2, HydroScat-4, HydroScat-6, HydroRad, a-Beta and c-Beta instruments.
Care and Maintenance
- Charge only with the originally-supplied charger, or a Hobi-approved replacement.
- Don't charge too much. On average, charge for no more than about 1/2 the length of time you operate from the batteries. For the HydroScat-6, which has a fast charger, charge only about 20% of the operating time.
- Do not charge for more than 24 hours.
- If the instrument is idle for a period of months, fully charge it once every 3 months.
- Every few months, allow the instrument to completely discharge its battery. Then fully charge it.
When maintained properly, batteries usually last at least 4 years. They may last much longer, but the chance of a random failure grows. If the internal batteries are critical to your work, we recommend replacement every 4 years, and sooner if the battery has been mistreated or shows a substantial drop in capacity.
Battery Pack Replacement
Do not attempt to replace a battery pack yourself. Unauthorized battery packs are likely not compatible with HOBI charging circuitry, will fail rapidly, and could damage the instrument or create a safety hazard. Contact us to return your instrument for service.