Product specifications

Appendix A Hardware Units Technical Data
3BSE036351-510 A 249
Table 55 shows Internal battery data. For external battery data, see SB821 External
Battery – AC 800M Memory Back-up on page 392 and SB822 Rechargeable
External Battery – AC 800M Memory Back-up on page 394.
Electro-magnetic Compatibility and Electrical Safety
PM851A/PM856A/PM860A/TP830 meets the requirements specified in
EMC Directive 89/336/EEC.
For more information regarding EMC and safety, see Appendix D, Directive
Considerations.
LED Indicators
See Table 20 on page 179.
Table 54. Back-up times for PM851A/PM856A/PM860A
Source Back-up time
Internal battery Minimum 2 weeks
External battery SB821 Minimum 8 months
External battery SB822
Note: Recharge time for an empty battery is
approximately 7 hours.
Minimum 4 weeks when fully
charged
Table 55. PM851A/PM856A/PM860A and TP830 – Internal battery data
Item Value
Internal battery
Battery Type Low rate lithium, 3.6 V, 950 mAh
Size ANSI size 1/2 AA, IEC size 1/2 R6
Lithium content 0.3 g