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Advantages of rechargable Li-ion batteries
- higher energy density means that Li-ion batteries can store more energy than same size or same weight counterparts;
- lower self discharge rate means that Lithium-ion batteries retain their charge for a longer period of time, even for weeks or months of storage;
- there is no memory effect, so Li-ion batteries are capable to hold the same charge even if they are repeatedly recharged after being only partially discharged;
Proper handling of Li-ion betteries
- storage temperature is important, store in a cool (below 25°C or 77°F) place to prevent capacity loss;
- it's suggested to fully charge and discharge the battery after stored for more than 5 months, then charge for 40% once more for longtime storage;
- in general, Li-ion batteries provide 300-500 discharge/charge cycles. Try to avoid frequent full discharges, partial discharges result in longer battery life.
Safety precautions
Lithium-ion batteries might be very dangerous when mistreated, so safety rules must strictly be observed.
- Operating temperature should be below 45°C or 113°F.
- Do not put the battery into fire or into water
- Do not expose the battery to direct heat
- Do not short-circuit the battery pack terminals
- Do not force to open the battery pack
- Do not drop the battery, avoid fierce strike
- Do not expose the battery to direct sunlight for a long period in an enclosed place, for example in a car
Estimated camera running times with different capacity Beillen batteries
| | Battery capacity (Wh) | | NP2001A | NP65 | 65 | 95 | 130 | 160 | Max. output power (W) | 25 | 44 | 44 | 54 | 79 | 79 | | Battery runtime at 25W total power consumption (min) | 100 | | | | | | | Runtime at 30W total power consumption (min) | Full time | n.a. | 136 | 129 | 193 | 261 | 335 | | 3 led | n.a. | 106 | 67 | 132 | 206 | 168 | | 2 led | n.a. | 125 | 104 | 167 | 241 | 262 | | 1 led | n.a. | 129 | 120 | 183 | 252 | 308 | | Runtime at 55W total power consumption (min) | Full time | n.a. | 115 | 153 | 190 | | 3 led | n.a. | 40 | 41 | 53 | | 2 led | n.a. | 67 | 91 | 118 | | 1 led | n.a. | 89 | 129 | 161 |
Notes: data valid at 13.0 V constant current discharge.
Maximal power consumption of your camera can be found in the operation manual. Eg. SONY DSR-570WS: 26.1W; DSR-390: 22.1W (with viewfinder). Source: Google.com
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