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HP-34C external battery charging
12-06-2017, 09:16 AM
Post: #3
RE: HP-34C external battery charging
I've changed the original, now useless NiCd batteries with AA-type rechargeables with a low self-discharge rate (e.g. eneloop from Panasonic).
They really hold the power for a long period if you use the calculator only sporadically. If necessary, you can load them outside the calculator.
To my knowledge, the Spice series is not critical to be operated without batteries that buffer the power coming from an adapter, as it was the case in the Woodstock series. However, I personally favor the workaround of a transplant with an up-to-date battery pack because you are more flexible without the power cord being attached all time.
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RE: HP-34C external battery charging - Frido Bohn - 12-06-2017 09:16 AM

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